Home / 19,104,013.60-28,656,020.40-12,693,479.20

Finding the Fourth Proportional to 19,104,013.60, 28,656,020.40 and 12,693,479.20

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Solution

The fourth proportional to 19,104,013.60, 28,656,020.40 and 12,693,479.20 is: 19,040,218.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,104,013.60 : 28,656,020.40 = 12,693,479.20 : x
  2. Step 2: Convert to fraction form
    19,104,013.60/28,656,020.40 = 12,693,479.20/x
  3. Step 3: Cross multiply
    19,104,013.60x = 28,656,020.40 × 12,693,479.20
  4. Step 4: Simplify right side
    19,104,013.60x = 363,744,598,902,175.62
  5. Step 5: Solve for x
    x = 363,744,598,902,175.62/19,104,013.60
  6. Step 6: Final answer
    x = 19,040,218.80

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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.