Home / 28,247,086.80-42,370,630.20-9,079,781.40

Finding the Fourth Proportional to 28,247,086.80, 42,370,630.20 and 9,079,781.40

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Solution

The fourth proportional to 28,247,086.80, 42,370,630.20 and 9,079,781.40 is: 13,619,672.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,247,086.80 : 42,370,630.20 = 9,079,781.40 : x
  2. Step 2: Convert to fraction form
    28,247,086.80/42,370,630.20 = 9,079,781.40/x
  3. Step 3: Cross multiply
    28,247,086.80x = 42,370,630.20 × 9,079,781.40
  4. Step 4: Simplify right side
    28,247,086.80x = 384,716,059,996,238.31
  5. Step 5: Solve for x
    x = 384,716,059,996,238.31/28,247,086.80
  6. Step 6: Final answer
    x = 13,619,672.10

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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.