Home / 90,565,569.70-135,593,248.28-81,382,269.22

Finding the Fourth Proportional to 90,565,569.70, 135,593,248.28 and 81,382,269.22

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Solution

The fourth proportional to 90,565,569.70, 135,593,248.28 and 81,382,269.22 is: 121,844,165.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,565,569.70 : 135,593,248.28 = 81,382,269.22 : x
  2. Step 2: Convert to fraction form
    90,565,569.70/135,593,248.28 = 81,382,269.22/x
  3. Step 3: Cross multiply
    90,565,569.70x = 135,593,248.28 × 81,382,269.22
  4. Step 4: Simplify right side
    90,565,569.70x = 11,034,886,235,937,262
  5. Step 5: Solve for x
    x = 11,034,886,235,937,262/90,565,569.70
  6. Step 6: Final answer
    x = 121,844,165.20

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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.