Home / 20,656,686.60-30,986,196.30-6,280,223.40

Finding the Fourth Proportional to 20,656,686.60, 30,986,196.30 and 6,280,223.40

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Solution

The fourth proportional to 20,656,686.60, 30,986,196.30 and 6,280,223.40 is: 9,420,689.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,656,686.60 : 30,986,196.30 = 6,280,223.40 : x
  2. Step 2: Convert to fraction form
    20,656,686.60/30,986,196.30 = 6,280,223.40/x
  3. Step 3: Cross multiply
    20,656,686.60x = 30,986,196.30 × 6,280,223.40
  4. Step 4: Simplify right side
    20,656,686.60x = 194,600,235,080,253.44
  5. Step 5: Solve for x
    x = 194,600,235,080,253.44/20,656,686.60
  6. Step 6: Final answer
    x = 9,420,689.72

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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.