Home / 81,924,955.20-122,887,432.80-73,705,334.40

Finding the Fourth Proportional to 81,924,955.20, 122,887,432.80 and 73,705,334.40

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Solution

The fourth proportional to 81,924,955.20, 122,887,432.80 and 73,705,334.40 is: 110,558,001.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,924,955.20 : 122,887,432.80 = 73,705,334.40 : x
  2. Step 2: Convert to fraction form
    81,924,955.20/122,887,432.80 = 73,705,334.40/x
  3. Step 3: Cross multiply
    81,924,955.20x = 122,887,432.80 × 73,705,334.40
  4. Step 4: Simplify right side
    81,924,955.20x = 9,057,459,328,081,528
  5. Step 5: Solve for x
    x = 9,057,459,328,081,528/81,924,955.20
  6. Step 6: Final answer
    x = 110,558,001.60

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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.