Home / 20,658,331.60-30,986,185.20-7,011,451.60

Finding the Fourth Proportional to 20,658,331.60, 30,986,185.20 and 7,011,451.60

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Solution

The fourth proportional to 20,658,331.60, 30,986,185.20 and 7,011,451.60 is: 10,516,732.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,658,331.60 : 30,986,185.20 = 7,011,451.60 : x
  2. Step 2: Convert to fraction form
    20,658,331.60/30,986,185.20 = 7,011,451.60/x
  3. Step 3: Cross multiply
    20,658,331.60x = 30,986,185.20 × 7,011,451.60
  4. Step 4: Simplify right side
    20,658,331.60x = 217,258,137,798,436.31
  5. Step 5: Solve for x
    x = 217,258,137,798,436.31/20,658,331.60
  6. Step 6: Final answer
    x = 10,516,732.04

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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.