Home / 12,900,375.74-19,350,556.61-4,703,631.78

Finding the Fourth Proportional to 12,900,375.74, 19,350,556.61 and 4,703,631.78

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Solution

The fourth proportional to 12,900,375.74, 19,350,556.61 and 4,703,631.78 is: 7,055,445.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,900,375.74 : 19,350,556.61 = 4,703,631.78 : x
  2. Step 2: Convert to fraction form
    12,900,375.74/19,350,556.61 = 4,703,631.78/x
  3. Step 3: Cross multiply
    12,900,375.74x = 19,350,556.61 × 4,703,631.78
  4. Step 4: Simplify right side
    12,900,375.74x = 91,017,893,007,966.91
  5. Step 5: Solve for x
    x = 91,017,893,007,966.91/12,900,375.74
  6. Step 6: Final answer
    x = 7,055,445.12

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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.