Home / 20,521,724.20-30,762,282.30-9,720,039.40

Finding the Fourth Proportional to 20,521,724.20, 30,762,282.30 and 9,720,039.40

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Solution

The fourth proportional to 20,521,724.20, 30,762,282.30 and 9,720,039.40 is: 14,570,442.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,521,724.20 : 30,762,282.30 = 9,720,039.40 : x
  2. Step 2: Convert to fraction form
    20,521,724.20/30,762,282.30 = 9,720,039.40/x
  3. Step 3: Cross multiply
    20,521,724.20x = 30,762,282.30 × 9,720,039.40
  4. Step 4: Simplify right side
    20,521,724.20x = 299,010,595,989,922.62
  5. Step 5: Solve for x
    x = 299,010,595,989,922.62/20,521,724.20
  6. Step 6: Final answer
    x = 14,570,442.18

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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.