Home / 78,239,327.20-117,400,981.20-32,805,714.40

Finding the Fourth Proportional to 78,239,327.20, 117,400,981.20 and 32,805,714.40

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Solution

The fourth proportional to 78,239,327.20, 117,400,981.20 and 32,805,714.40 is: 49,226,178.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,239,327.20 : 117,400,981.20 = 32,805,714.40 : x
  2. Step 2: Convert to fraction form
    78,239,327.20/117,400,981.20 = 32,805,714.40/x
  3. Step 3: Cross multiply
    78,239,327.20x = 117,400,981.20 × 32,805,714.40
  4. Step 4: Simplify right side
    78,239,327.20x = 3,851,423,059,526,969
  5. Step 5: Solve for x
    x = 3,851,423,059,526,969/78,239,327.20
  6. Step 6: Final answer
    x = 49,226,178.16

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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.