Home / 66,449,169.60-99,474,688.80-39,508,958.40

Finding the Fourth Proportional to 66,449,169.60, 99,474,688.80 and 39,508,958.40

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Solution

The fourth proportional to 66,449,169.60, 99,474,688.80 and 39,508,958.40 is: 59,145,078.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,449,169.60 : 99,474,688.80 = 39,508,958.40 : x
  2. Step 2: Convert to fraction form
    66,449,169.60/99,474,688.80 = 39,508,958.40/x
  3. Step 3: Cross multiply
    66,449,169.60x = 99,474,688.80 × 39,508,958.40
  4. Step 4: Simplify right side
    66,449,169.60x = 3,930,141,341,652,145.50
  5. Step 5: Solve for x
    x = 3,930,141,341,652,145.50/66,449,169.60
  6. Step 6: Final answer
    x = 59,145,078.34

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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.