Home / 99,660,042.90-149,490,064.35-54,310,410.90

Finding the Fourth Proportional to 99,660,042.90, 149,490,064.35 and 54,310,410.90

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Solution

The fourth proportional to 99,660,042.90, 149,490,064.35 and 54,310,410.90 is: 81,465,616.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,660,042.90 : 149,490,064.35 = 54,310,410.90 : x
  2. Step 2: Convert to fraction form
    99,660,042.90/149,490,064.35 = 54,310,410.90/x
  3. Step 3: Cross multiply
    99,660,042.90x = 149,490,064.35 × 54,310,410.90
  4. Step 4: Simplify right side
    99,660,042.90x = 8,118,866,820,315,941
  5. Step 5: Solve for x
    x = 8,118,866,820,315,941/99,660,042.90
  6. Step 6: Final answer
    x = 81,465,616.35

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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.