Home / 1,131,231,175.20-1,560,865,060.62-661,241,583.72

Finding the Fourth Proportional to 1,131,231,175.20, 1,560,865,060.62 and 661,241,583.72

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Solution

The fourth proportional to 1,131,231,175.20, 1,560,865,060.62 and 661,241,583.72 is: 912,376,627.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,231,175.20 : 1,560,865,060.62 = 661,241,583.72 : x
  2. Step 2: Convert to fraction form
    1,131,231,175.20/1,560,865,060.62 = 661,241,583.72/x
  3. Step 3: Cross multiply
    1,131,231,175.20x = 1,560,865,060.62 × 661,241,583.72
  4. Step 4: Simplify right side
    1,131,231,175.20x = 1,032,108,884,657,582,592
  5. Step 5: Solve for x
    x = 1,032,108,884,657,582,592/1,131,231,175.20
  6. Step 6: Final answer
    x = 912,376,627.59

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Double scale
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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.