Home / 21,260,404.80-31,890,607.20-21,134,433.60

Finding the Fourth Proportional to 21,260,404.80, 31,890,607.20 and 21,134,433.60

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Solution

The fourth proportional to 21,260,404.80, 31,890,607.20 and 21,134,433.60 is: 31,701,650.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,260,404.80 : 31,890,607.20 = 21,134,433.60 : x
  2. Step 2: Convert to fraction form
    21,260,404.80/31,890,607.20 = 21,134,433.60/x
  3. Step 3: Cross multiply
    21,260,404.80x = 31,890,607.20 × 21,134,433.60
  4. Step 4: Simplify right side
    21,260,404.80x = 673,989,920,332,082
  5. Step 5: Solve for x
    x = 673,989,920,332,082/21,260,404.80
  6. Step 6: Final answer
    x = 31,701,650.40

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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.