Home / 21,082,680.60-31,554,036.90-15,309,000.60

Finding the Fourth Proportional to 21,082,680.60, 31,554,036.90 and 15,309,000.60

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Solution

The fourth proportional to 21,082,680.60, 31,554,036.90 and 15,309,000.60 is: 22,912,682.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,082,680.60 : 31,554,036.90 = 15,309,000.60 : x
  2. Step 2: Convert to fraction form
    21,082,680.60/31,554,036.90 = 15,309,000.60/x
  3. Step 3: Cross multiply
    21,082,680.60x = 31,554,036.90 × 15,309,000.60
  4. Step 4: Simplify right side
    21,082,680.60x = 483,060,769,834,522.12
  5. Step 5: Solve for x
    x = 483,060,769,834,522.12/21,082,680.60
  6. Step 6: Final answer
    x = 22,912,682.64

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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.