Home / 72,732,037.20-100,372,337.37-39,694,407.36

Finding the Fourth Proportional to 72,732,037.20, 100,372,337.37 and 39,694,407.36

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Solution

The fourth proportional to 72,732,037.20, 100,372,337.37 and 39,694,407.36 is: 54,779,442.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,732,037.20 : 100,372,337.37 = 39,694,407.36 : x
  2. Step 2: Convert to fraction form
    72,732,037.20/100,372,337.37 = 39,694,407.36/x
  3. Step 3: Cross multiply
    72,732,037.20x = 100,372,337.37 × 39,694,407.36
  4. Step 4: Simplify right side
    72,732,037.20x = 3,984,220,447,240,131
  5. Step 5: Solve for x
    x = 3,984,220,447,240,131/72,732,037.20
  6. Step 6: Final answer
    x = 54,779,442.47

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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.