Home / 99,660,016.90-149,490,025.35-54,310,384.90

Finding the Fourth Proportional to 99,660,016.90, 149,490,025.35 and 54,310,384.90

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Solution

The fourth proportional to 99,660,016.90, 149,490,025.35 and 54,310,384.90 is: 81,465,577.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,660,016.90 : 149,490,025.35 = 54,310,384.90 : x
  2. Step 2: Convert to fraction form
    99,660,016.90/149,490,025.35 = 54,310,384.90/x
  3. Step 3: Cross multiply
    99,660,016.90x = 149,490,025.35 × 54,310,384.90
  4. Step 4: Simplify right side
    99,660,016.90x = 8,118,860,815,469,257
  5. Step 5: Solve for x
    x = 8,118,860,815,469,257/99,660,016.90
  6. Step 6: Final answer
    x = 81,465,577.35

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Double scale
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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.