Home / 12,791,632.60-19,162,565.70-7,727,901.40

Finding the Fourth Proportional to 12,791,632.60, 19,162,565.70 and 7,727,901.40

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Solution

The fourth proportional to 12,791,632.60, 19,162,565.70 and 7,727,901.40 is: 11,576,819.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,791,632.60 : 19,162,565.70 = 7,727,901.40 : x
  2. Step 2: Convert to fraction form
    12,791,632.60/19,162,565.70 = 7,727,901.40/x
  3. Step 3: Cross multiply
    12,791,632.60x = 19,162,565.70 × 7,727,901.40
  4. Step 4: Simplify right side
    12,791,632.60x = 148,086,418,300,621.97
  5. Step 5: Solve for x
    x = 148,086,418,300,621.97/12,791,632.60
  6. Step 6: Final answer
    x = 11,576,819.23

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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.