Home / 1,281,950,916.76-1,769,092,265.10-695,240,052.76

Finding the Fourth Proportional to 1,281,950,916.76, 1,769,092,265.10 and 695,240,052.76

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Solution

The fourth proportional to 1,281,950,916.76, 1,769,092,265.10 and 695,240,052.76 is: 959,431,272.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,950,916.76 : 1,769,092,265.10 = 695,240,052.76 : x
  2. Step 2: Convert to fraction form
    1,281,950,916.76/1,769,092,265.10 = 695,240,052.76/x
  3. Step 3: Cross multiply
    1,281,950,916.76x = 1,769,092,265.10 × 695,240,052.76
  4. Step 4: Simplify right side
    1,281,950,916.76x = 1,229,943,799,725,431,808
  5. Step 5: Solve for x
    x = 1,229,943,799,725,431,808/1,281,950,916.76
  6. Step 6: Final answer
    x = 959,431,272.79

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Double scale
Find fourth proportional to 1,281,950,917.76, 1,769,092,266.48 and 695,240,053.76
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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.