Home / 18,795,665.16-28,193,522.48-5,148,932.88

Finding the Fourth Proportional to 18,795,665.16, 28,193,522.48 and 5,148,932.88

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Solution

The fourth proportional to 18,795,665.16, 28,193,522.48 and 5,148,932.88 is: 7,723,406.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,795,665.16 : 28,193,522.48 = 5,148,932.88 : x
  2. Step 2: Convert to fraction form
    18,795,665.16/28,193,522.48 = 5,148,932.88/x
  3. Step 3: Cross multiply
    18,795,665.16x = 28,193,522.48 × 5,148,932.88
  4. Step 4: Simplify right side
    18,795,665.16x = 145,166,554,900,291.16
  5. Step 5: Solve for x
    x = 145,166,554,900,291.16/18,795,665.16
  6. Step 6: Final answer
    x = 7,723,406.10

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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.