Home / 1,131,231,149.26-1,560,865,024.98-661,241,557.82

Finding the Fourth Proportional to 1,131,231,149.26, 1,560,865,024.98 and 661,241,557.82

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Solution

The fourth proportional to 1,131,231,149.26, 1,560,865,024.98 and 661,241,557.82 is: 912,376,591.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,231,149.26 : 1,560,865,024.98 = 661,241,557.82 : x
  2. Step 2: Convert to fraction form
    1,131,231,149.26/1,560,865,024.98 = 661,241,557.82/x
  3. Step 3: Cross multiply
    1,131,231,149.26x = 1,560,865,024.98 × 661,241,557.82
  4. Step 4: Simplify right side
    1,131,231,149.26x = 1,032,108,820,668,430,592
  5. Step 5: Solve for x
    x = 1,032,108,820,668,430,592/1,131,231,149.26
  6. Step 6: Final answer
    x = 912,376,591.95

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Half scale
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Double scale
Find fourth proportional to 1,131,231,150.26, 1,560,865,026.36 and 661,241,558.82
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.