Home / 89,420,020.40-134,130,030.60-80,916,964.40

Finding the Fourth Proportional to 89,420,020.40, 134,130,030.60 and 80,916,964.40

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Solution

The fourth proportional to 89,420,020.40, 134,130,030.60 and 80,916,964.40 is: 121,375,446.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,420,020.40 : 134,130,030.60 = 80,916,964.40 : x
  2. Step 2: Convert to fraction form
    89,420,020.40/134,130,030.60 = 80,916,964.40/x
  3. Step 3: Cross multiply
    89,420,020.40x = 134,130,030.60 × 80,916,964.40
  4. Step 4: Simplify right side
    89,420,020.40x = 10,853,394,911,031,110
  5. Step 5: Solve for x
    x = 10,853,394,911,031,110/89,420,020.40
  6. Step 6: Final answer
    x = 121,375,446.60

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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.