Home / 18,924,864.76-28,389,658.56-7,408,844.74

Finding the Fourth Proportional to 18,924,864.76, 28,389,658.56 and 7,408,844.74

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Solution

The fourth proportional to 18,924,864.76, 28,389,658.56 and 7,408,844.74 is: 11,114,191.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,924,864.76 : 28,389,658.56 = 7,408,844.74 : x
  2. Step 2: Convert to fraction form
    18,924,864.76/28,389,658.56 = 7,408,844.74/x
  3. Step 3: Cross multiply
    18,924,864.76x = 28,389,658.56 × 7,408,844.74
  4. Step 4: Simplify right side
    18,924,864.76x = 210,334,572,492,651.97
  5. Step 5: Solve for x
    x = 210,334,572,492,651.97/18,924,864.76
  6. Step 6: Final answer
    x = 11,114,191.58

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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.