Home / 19,478,030.20-29,217,045.30-9,378,215.80

Finding the Fourth Proportional to 19,478,030.20, 29,217,045.30 and 9,378,215.80

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Solution

The fourth proportional to 19,478,030.20, 29,217,045.30 and 9,378,215.80 is: 14,067,323.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,478,030.20 : 29,217,045.30 = 9,378,215.80 : x
  2. Step 2: Convert to fraction form
    19,478,030.20/29,217,045.30 = 9,378,215.80/x
  3. Step 3: Cross multiply
    19,478,030.20x = 29,217,045.30 × 9,378,215.80
  4. Step 4: Simplify right side
    19,478,030.20x = 274,003,755,861,775.78
  5. Step 5: Solve for x
    x = 274,003,755,861,775.78/19,478,030.20
  6. Step 6: Final answer
    x = 14,067,323.70

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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.