Home / 66,475,065.60-99,720,374.40-21,041,452.80

Finding the Fourth Proportional to 66,475,065.60, 99,720,374.40 and 21,041,452.80

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Solution

The fourth proportional to 66,475,065.60, 99,720,374.40 and 21,041,452.80 is: 31,564,640.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,475,065.60 : 99,720,374.40 = 21,041,452.80 : x
  2. Step 2: Convert to fraction form
    66,475,065.60/99,720,374.40 = 21,041,452.80/x
  3. Step 3: Cross multiply
    66,475,065.60x = 99,720,374.40 × 21,041,452.80
  4. Step 4: Simplify right side
    66,475,065.60x = 2,098,261,551,135,928.50
  5. Step 5: Solve for x
    x = 2,098,261,551,135,928.50/66,475,065.60
  6. Step 6: Final answer
    x = 31,564,640.55

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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.