Home / 19,152,139.40-28,728,209.10-15,373,003.40

Finding the Fourth Proportional to 19,152,139.40, 28,728,209.10 and 15,373,003.40

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Solution

The fourth proportional to 19,152,139.40, 28,728,209.10 and 15,373,003.40 is: 23,059,505.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,152,139.40 : 28,728,209.10 = 15,373,003.40 : x
  2. Step 2: Convert to fraction form
    19,152,139.40/28,728,209.10 = 15,373,003.40/x
  3. Step 3: Cross multiply
    19,152,139.40x = 28,728,209.10 × 15,373,003.40
  4. Step 4: Simplify right side
    19,152,139.40x = 441,638,856,170,211
  5. Step 5: Solve for x
    x = 441,638,856,170,211/19,152,139.40
  6. Step 6: Final answer
    x = 23,059,505.10

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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.