Home / 21,238,869,793.78-29,309,643,184.22-11,723,423,338.90

Finding the Fourth Proportional to 21,238,869,793.78, 29,309,643,184.22 and 11,723,423,338.90

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Solution

The fourth proportional to 21,238,869,793.78, 29,309,643,184.22 and 11,723,423,338.90 is: 16,178,325,791.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,238,869,793.78 : 29,309,643,184.22 = 11,723,423,338.90 : x
  2. Step 2: Convert to fraction form
    21,238,869,793.78/29,309,643,184.22 = 11,723,423,338.90/x
  3. Step 3: Cross multiply
    21,238,869,793.78x = 29,309,643,184.22 × 11,723,423,338.90
  4. Step 4: Simplify right side
    21,238,869,793.78x = 343,609,354,960,716,038,144
  5. Step 5: Solve for x
    x = 343,609,354,960,716,038,144/21,238,869,793.78
  6. Step 6: Final answer
    x = 16,178,325,791.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.