Home / 90,727,553.40-136,091,330.10-30,143,279.40

Finding the Fourth Proportional to 90,727,553.40, 136,091,330.10 and 30,143,279.40

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Solution

The fourth proportional to 90,727,553.40, 136,091,330.10 and 30,143,279.40 is: 45,214,919.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,727,553.40 : 136,091,330.10 = 30,143,279.40 : x
  2. Step 2: Convert to fraction form
    90,727,553.40/136,091,330.10 = 30,143,279.40/x
  3. Step 3: Cross multiply
    90,727,553.40x = 136,091,330.10 × 30,143,279.40
  4. Step 4: Simplify right side
    90,727,553.40x = 4,102,238,987,121,929.50
  5. Step 5: Solve for x
    x = 4,102,238,987,121,929.50/90,727,553.40
  6. Step 6: Final answer
    x = 45,214,919.10

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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.