Home / 109,167,139.20-163,750,708.80-100,238,930.40

Finding the Fourth Proportional to 109,167,139.20, 163,750,708.80 and 100,238,930.40

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Solution

The fourth proportional to 109,167,139.20, 163,750,708.80 and 100,238,930.40 is: 150,358,395.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,167,139.20 : 163,750,708.80 = 100,238,930.40 : x
  2. Step 2: Convert to fraction form
    109,167,139.20/163,750,708.80 = 100,238,930.40/x
  3. Step 3: Cross multiply
    109,167,139.20x = 163,750,708.80 × 100,238,930.40
  4. Step 4: Simplify right side
    109,167,139.20x = 16,414,195,902,353,870
  5. Step 5: Solve for x
    x = 16,414,195,902,353,870/109,167,139.20
  6. Step 6: Final answer
    x = 150,358,395.60

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1.5x scale

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.