Home / 19,429,665.90-29,144,498.85-18,869,793.90

Finding the Fourth Proportional to 19,429,665.90, 29,144,498.85 and 18,869,793.90

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Solution

The fourth proportional to 19,429,665.90, 29,144,498.85 and 18,869,793.90 is: 28,304,690.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,429,665.90 : 29,144,498.85 = 18,869,793.90 : x
  2. Step 2: Convert to fraction form
    19,429,665.90/29,144,498.85 = 18,869,793.90/x
  3. Step 3: Cross multiply
    19,429,665.90x = 29,144,498.85 × 18,869,793.90
  4. Step 4: Simplify right side
    19,429,665.90x = 549,950,686,618,287
  5. Step 5: Solve for x
    x = 549,950,686,618,287/19,429,665.90
  6. Step 6: Final answer
    x = 28,304,690.85

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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.