Home / 18,887,556.90-28,331,335.35-15,108,420.90

Finding the Fourth Proportional to 18,887,556.90, 28,331,335.35 and 15,108,420.90

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Solution

The fourth proportional to 18,887,556.90, 28,331,335.35 and 15,108,420.90 is: 22,662,631.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,887,556.90 : 28,331,335.35 = 15,108,420.90 : x
  2. Step 2: Convert to fraction form
    18,887,556.90/28,331,335.35 = 15,108,420.90/x
  3. Step 3: Cross multiply
    18,887,556.90x = 28,331,335.35 × 15,108,420.90
  4. Step 4: Simplify right side
    18,887,556.90x = 428,041,739,126,848.88
  5. Step 5: Solve for x
    x = 428,041,739,126,848.88/18,887,556.90
  6. Step 6: Final answer
    x = 22,662,631.35

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Similar ratio
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1.5x scale

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.