Home / 20,679,612.59-28,536,734.97-11,385,417.67

Finding the Fourth Proportional to 20,679,612.59, 28,536,734.97 and 11,385,417.67

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Solution

The fourth proportional to 20,679,612.59, 28,536,734.97 and 11,385,417.67 is: 15,711,254.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,679,612.59 : 28,536,734.97 = 11,385,417.67 : x
  2. Step 2: Convert to fraction form
    20,679,612.59/28,536,734.97 = 11,385,417.67/x
  3. Step 3: Cross multiply
    20,679,612.59x = 28,536,734.97 × 11,385,417.67
  4. Step 4: Simplify right side
    20,679,612.59x = 324,902,646,500,203.06
  5. Step 5: Solve for x
    x = 324,902,646,500,203.06/20,679,612.59
  6. Step 6: Final answer
    x = 15,711,254.02

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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.