Home / 112,478,909.20-168,718,363.80-39,695,111.80

Finding the Fourth Proportional to 112,478,909.20, 168,718,363.80 and 39,695,111.80

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Solution

The fourth proportional to 112,478,909.20, 168,718,363.80 and 39,695,111.80 is: 59,542,667.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,478,909.20 : 168,718,363.80 = 39,695,111.80 : x
  2. Step 2: Convert to fraction form
    112,478,909.20/168,718,363.80 = 39,695,111.80/x
  3. Step 3: Cross multiply
    112,478,909.20x = 168,718,363.80 × 39,695,111.80
  4. Step 4: Simplify right side
    112,478,909.20x = 6,697,294,313,754,073
  5. Step 5: Solve for x
    x = 6,697,294,313,754,073/112,478,909.20
  6. Step 6: Final answer
    x = 59,542,667.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.