Home / 1,276,324,515.45-1,761,463,243.53-748,132,280.73

Finding the Fourth Proportional to 1,276,324,515.45, 1,761,463,243.53 and 748,132,280.73

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Solution

The fourth proportional to 1,276,324,515.45, 1,761,463,243.53 and 748,132,280.73 is: 1,032,501,920.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,324,515.45 : 1,761,463,243.53 = 748,132,280.73 : x
  2. Step 2: Convert to fraction form
    1,276,324,515.45/1,761,463,243.53 = 748,132,280.73/x
  3. Step 3: Cross multiply
    1,276,324,515.45x = 1,761,463,243.53 × 748,132,280.73
  4. Step 4: Simplify right side
    1,276,324,515.45x = 1,317,807,513,804,162,304
  5. Step 5: Solve for x
    x = 1,317,807,513,804,162,304/1,276,324,515.45
  6. Step 6: Final answer
    x = 1,032,501,920.83

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Half scale
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Double scale
Find fourth proportional to 1,276,324,516.45, 1,761,463,244.91 and 748,132,281.73
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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.