Home / 19,729,205.92-27,225,469.20-12,390,873.76

Finding the Fourth Proportional to 19,729,205.92, 27,225,469.20 and 12,390,873.76

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Solution

The fourth proportional to 19,729,205.92, 27,225,469.20 and 12,390,873.76 is: 17,098,881.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,729,205.92 : 27,225,469.20 = 12,390,873.76 : x
  2. Step 2: Convert to fraction form
    19,729,205.92/27,225,469.20 = 12,390,873.76/x
  3. Step 3: Cross multiply
    19,729,205.92x = 27,225,469.20 × 12,390,873.76
  4. Step 4: Simplify right side
    19,729,205.92x = 337,347,351,913,968.19
  5. Step 5: Solve for x
    x = 337,347,351,913,968.19/19,729,205.92
  6. Step 6: Final answer
    x = 17,098,881.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.