Home / 90,857,892.60-136,286,838.90-42,319,614.60

Finding the Fourth Proportional to 90,857,892.60, 136,286,838.90 and 42,319,614.60

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Solution

The fourth proportional to 90,857,892.60, 136,286,838.90 and 42,319,614.60 is: 63,479,421.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,857,892.60 : 136,286,838.90 = 42,319,614.60 : x
  2. Step 2: Convert to fraction form
    90,857,892.60/136,286,838.90 = 42,319,614.60/x
  3. Step 3: Cross multiply
    90,857,892.60x = 136,286,838.90 × 42,319,614.60
  4. Step 4: Simplify right side
    90,857,892.60x = 5,767,606,497,300,288
  5. Step 5: Solve for x
    x = 5,767,606,497,300,288/90,857,892.60
  6. Step 6: Final answer
    x = 63,479,421.90

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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.