Home / 66,385,497.60-99,578,246.40-20,947,292.10

Finding the Fourth Proportional to 66,385,497.60, 99,578,246.40 and 20,947,292.10

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Solution

The fourth proportional to 66,385,497.60, 99,578,246.40 and 20,947,292.10 is: 31,420,938.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,385,497.60 : 99,578,246.40 = 20,947,292.10 : x
  2. Step 2: Convert to fraction form
    66,385,497.60/99,578,246.40 = 20,947,292.10/x
  3. Step 3: Cross multiply
    66,385,497.60x = 99,578,246.40 × 20,947,292.10
  4. Step 4: Simplify right side
    66,385,497.60x = 2,085,894,614,146,573.75
  5. Step 5: Solve for x
    x = 2,085,894,614,146,573.75/66,385,497.60
  6. Step 6: Final answer
    x = 31,420,938.15

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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.