Home / 66,432,098.40-99,648,147.60-21,007,816.80

Finding the Fourth Proportional to 66,432,098.40, 99,648,147.60 and 21,007,816.80

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Solution

The fourth proportional to 66,432,098.40, 99,648,147.60 and 21,007,816.80 is: 31,511,725.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,432,098.40 : 99,648,147.60 = 21,007,816.80 : x
  2. Step 2: Convert to fraction form
    66,432,098.40/99,648,147.60 = 21,007,816.80/x
  3. Step 3: Cross multiply
    66,432,098.40x = 99,648,147.60 × 21,007,816.80
  4. Step 4: Simplify right side
    66,432,098.40x = 2,093,390,029,240,159.75
  5. Step 5: Solve for x
    x = 2,093,390,029,240,159.75/66,432,098.40
  6. Step 6: Final answer
    x = 31,511,725.20

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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.