Home / 198,189,411.40-297,284,117.10-125,630,000.20

Finding the Fourth Proportional to 198,189,411.40, 297,284,117.10 and 125,630,000.20

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Solution

The fourth proportional to 198,189,411.40, 297,284,117.10 and 125,630,000.20 is: 188,445,000.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,189,411.40 : 297,284,117.10 = 125,630,000.20 : x
  2. Step 2: Convert to fraction form
    198,189,411.40/297,284,117.10 = 125,630,000.20/x
  3. Step 3: Cross multiply
    198,189,411.40x = 297,284,117.10 × 125,630,000.20
  4. Step 4: Simplify right side
    198,189,411.40x = 37,347,803,690,729,824
  5. Step 5: Solve for x
    x = 37,347,803,690,729,824/198,189,411.40
  6. Step 6: Final answer
    x = 188,445,000.30

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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.