Home / 20,665,286,138.88-31,002,855,857.28-6,690,912,239.52

Finding the Fourth Proportional to 20,665,286,138.88, 31,002,855,857.28 and 6,690,912,239.52

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Solution

The fourth proportional to 20,665,286,138.88, 31,002,855,857.28 and 6,690,912,239.52 is: 10,037,963,487.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,665,286,138.88 : 31,002,855,857.28 = 6,690,912,239.52 : x
  2. Step 2: Convert to fraction form
    20,665,286,138.88/31,002,855,857.28 = 6,690,912,239.52/x
  3. Step 3: Cross multiply
    20,665,286,138.88x = 31,002,855,857.28 × 6,690,912,239.52
  4. Step 4: Simplify right side
    20,665,286,138.88x = 207,437,387,715,549,069,312
  5. Step 5: Solve for x
    x = 207,437,387,715,549,069,312/20,665,286,138.88
  6. Step 6: Final answer
    x = 10,037,963,487.25

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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.