Home / 90,340,071.38-135,509,834.90-25,643,931.20

Finding the Fourth Proportional to 90,340,071.38, 135,509,834.90 and 25,643,931.20

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Solution

The fourth proportional to 90,340,071.38, 135,509,834.90 and 25,643,931.20 is: 38,465,819.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,340,071.38 : 135,509,834.90 = 25,643,931.20 : x
  2. Step 2: Convert to fraction form
    90,340,071.38/135,509,834.90 = 25,643,931.20/x
  3. Step 3: Cross multiply
    90,340,071.38x = 135,509,834.90 × 25,643,931.20
  4. Step 4: Simplify right side
    90,340,071.38x = 3,475,004,882,293,190.50
  5. Step 5: Solve for x
    x = 3,475,004,882,293,190.50/90,340,071.38
  6. Step 6: Final answer
    x = 38,465,819.54

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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.