Home / 12,929,126.12-17,841,866.02-7,127,773.80

Finding the Fourth Proportional to 12,929,126.12, 17,841,866.02 and 7,127,773.80

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Solution

The fourth proportional to 12,929,126.12, 17,841,866.02 and 7,127,773.80 is: 9,836,147.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,929,126.12 : 17,841,866.02 = 7,127,773.80 : x
  2. Step 2: Convert to fraction form
    12,929,126.12/17,841,866.02 = 7,127,773.80/x
  3. Step 3: Cross multiply
    12,929,126.12x = 17,841,866.02 × 7,127,773.80
  4. Step 4: Simplify right side
    12,929,126.12x = 127,172,785,160,466.27
  5. Step 5: Solve for x
    x = 127,172,785,160,466.27/12,929,126.12
  6. Step 6: Final answer
    x = 9,836,147.00

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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.