Home / 28,065,565.50-38,730,480.66-15,188,509.50

Finding the Fourth Proportional to 28,065,565.50, 38,730,480.66 and 15,188,509.50

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Solution

The fourth proportional to 28,065,565.50, 38,730,480.66 and 15,188,509.50 is: 20,960,143.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,065,565.50 : 38,730,480.66 = 15,188,509.50 : x
  2. Step 2: Convert to fraction form
    28,065,565.50/38,730,480.66 = 15,188,509.50/x
  3. Step 3: Cross multiply
    28,065,565.50x = 38,730,480.66 × 15,188,509.50
  4. Step 4: Simplify right side
    28,065,565.50x = 588,258,273,443,976.25
  5. Step 5: Solve for x
    x = 588,258,273,443,976.25/28,065,565.50
  6. Step 6: Final answer
    x = 20,960,143.26

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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.