Home / 47,780,928.12-65,935,781.22-28,208,121.36

Finding the Fourth Proportional to 47,780,928.12, 65,935,781.22 and 28,208,121.36

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Solution

The fourth proportional to 47,780,928.12, 65,935,781.22 and 28,208,121.36 is: 38,926,086.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,780,928.12 : 65,935,781.22 = 28,208,121.36 : x
  2. Step 2: Convert to fraction form
    47,780,928.12/65,935,781.22 = 28,208,121.36/x
  3. Step 3: Cross multiply
    47,780,928.12x = 65,935,781.22 × 28,208,121.36
  4. Step 4: Simplify right side
    47,780,928.12x = 1,859,924,518,620,168.75
  5. Step 5: Solve for x
    x = 1,859,924,518,620,168.75/47,780,928.12
  6. Step 6: Final answer
    x = 38,926,086.03

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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.