Home / 19,931,047.20-29,872,951.20-10,341,489.60

Finding the Fourth Proportional to 19,931,047.20, 29,872,951.20 and 10,341,489.60

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Solution

The fourth proportional to 19,931,047.20, 29,872,951.20 and 10,341,489.60 is: 15,499,979.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,931,047.20 : 29,872,951.20 = 10,341,489.60 : x
  2. Step 2: Convert to fraction form
    19,931,047.20/29,872,951.20 = 10,341,489.60/x
  3. Step 3: Cross multiply
    19,931,047.20x = 29,872,951.20 × 10,341,489.60
  4. Step 4: Simplify right side
    19,931,047.20x = 308,930,814,156,107.50
  5. Step 5: Solve for x
    x = 308,930,814,156,107.50/19,931,047.20
  6. Step 6: Final answer
    x = 15,499,979.06

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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.