Home / 72,253,713-99,697,261.08-40,891,614.60

Finding the Fourth Proportional to 72,253,713, 99,697,261.08 and 40,891,614.60

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Solution

The fourth proportional to 72,253,713, 99,697,261.08 and 40,891,614.60 is: 56,423,148.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,253,713 : 99,697,261.08 = 40,891,614.60 : x
  2. Step 2: Convert to fraction form
    72,253,713/99,697,261.08 = 40,891,614.60/x
  3. Step 3: Cross multiply
    72,253,713x = 99,697,261.08 × 40,891,614.60
  4. Step 4: Simplify right side
    72,253,713x = 4,076,781,976,758,940
  5. Step 5: Solve for x
    x = 4,076,781,976,758,940/72,253,713
  6. Step 6: Final answer
    x = 56,423,148.48

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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.