Home / 85,788,034.20-128,540,333.70-73,033,450.20

Finding the Fourth Proportional to 85,788,034.20, 128,540,333.70 and 73,033,450.20

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Solution

The fourth proportional to 85,788,034.20, 128,540,333.70 and 73,033,450.20 is: 109,429,527.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,788,034.20 : 128,540,333.70 = 73,033,450.20 : x
  2. Step 2: Convert to fraction form
    85,788,034.20/128,540,333.70 = 73,033,450.20/x
  3. Step 3: Cross multiply
    85,788,034.20x = 128,540,333.70 × 73,033,450.20
  4. Step 4: Simplify right side
    85,788,034.20x = 9,387,744,059,970,332
  5. Step 5: Solve for x
    x = 9,387,744,059,970,332/85,788,034.20
  6. Step 6: Final answer
    x = 109,429,527.64

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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.