Home / 72,725,934.92-100,363,909.75-39,688,312.04

Finding the Fourth Proportional to 72,725,934.92, 100,363,909.75 and 39,688,312.04

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Solution

The fourth proportional to 72,725,934.92, 100,363,909.75 and 39,688,312.04 is: 54,771,027.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,725,934.92 : 100,363,909.75 = 39,688,312.04 : x
  2. Step 2: Convert to fraction form
    72,725,934.92/100,363,909.75 = 39,688,312.04/x
  3. Step 3: Cross multiply
    72,725,934.92x = 100,363,909.75 × 39,688,312.04
  4. Step 4: Simplify right side
    72,725,934.92x = 3,983,274,167,864,087
  5. Step 5: Solve for x
    x = 3,983,274,167,864,087/72,725,934.92
  6. Step 6: Final answer
    x = 54,771,027.32

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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.