Home / 19,290,729.60-28,941,469.92-15,730,118.88

Finding the Fourth Proportional to 19,290,729.60, 28,941,469.92 and 15,730,118.88

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Solution

The fourth proportional to 19,290,729.60, 28,941,469.92 and 15,730,118.88 is: 23,599,561.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,290,729.60 : 28,941,469.92 = 15,730,118.88 : x
  2. Step 2: Convert to fraction form
    19,290,729.60/28,941,469.92 = 15,730,118.88/x
  3. Step 3: Cross multiply
    19,290,729.60x = 28,941,469.92 × 15,730,118.88
  4. Step 4: Simplify right side
    19,290,729.60x = 455,252,762,403,544.12
  5. Step 5: Solve for x
    x = 455,252,762,403,544.12/19,290,729.60
  6. Step 6: Final answer
    x = 23,599,561.65

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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.