Home / 19,802,138.40-29,699,060.40-9,712,000.80

Finding the Fourth Proportional to 19,802,138.40, 29,699,060.40 and 9,712,000.80

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Solution

The fourth proportional to 19,802,138.40, 29,699,060.40 and 9,712,000.80 is: 14,565,967.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,802,138.40 : 29,699,060.40 = 9,712,000.80 : x
  2. Step 2: Convert to fraction form
    19,802,138.40/29,699,060.40 = 9,712,000.80/x
  3. Step 3: Cross multiply
    19,802,138.40x = 29,699,060.40 × 9,712,000.80
  4. Step 4: Simplify right side
    19,802,138.40x = 288,437,298,364,048.31
  5. Step 5: Solve for x
    x = 288,437,298,364,048.31/19,802,138.40
  6. Step 6: Final answer
    x = 14,565,967.20

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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.