Home / 66,448,719.60-99,474,013.80-39,508,508.40

Finding the Fourth Proportional to 66,448,719.60, 99,474,013.80 and 39,508,508.40

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Solution

The fourth proportional to 66,448,719.60, 99,474,013.80 and 39,508,508.40 is: 59,144,403.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,448,719.60 : 99,474,013.80 = 39,508,508.40 : x
  2. Step 2: Convert to fraction form
    66,448,719.60/99,474,013.80 = 39,508,508.40/x
  3. Step 3: Cross multiply
    66,448,719.60x = 99,474,013.80 × 39,508,508.40
  4. Step 4: Simplify right side
    66,448,719.60x = 3,930,069,909,799,015.50
  5. Step 5: Solve for x
    x = 3,930,069,909,799,015.50/66,448,719.60
  6. Step 6: Final answer
    x = 59,144,403.89

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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.