Home / 72,485,199.17-100,029,591.26-39,890,151.17

Finding the Fourth Proportional to 72,485,199.17, 100,029,591.26 and 39,890,151.17

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Solution

The fourth proportional to 72,485,199.17, 100,029,591.26 and 39,890,151.17 is: 55,048,417.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,485,199.17 : 100,029,591.26 = 39,890,151.17 : x
  2. Step 2: Convert to fraction form
    72,485,199.17/100,029,591.26 = 39,890,151.17/x
  3. Step 3: Cross multiply
    72,485,199.17x = 100,029,591.26 × 39,890,151.17
  4. Step 4: Simplify right side
    72,485,199.17x = 3,990,195,516,885,333.50
  5. Step 5: Solve for x
    x = 3,990,195,516,885,333.50/72,485,199.17
  6. Step 6: Final answer
    x = 55,048,417.64

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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.