Home / 45,428,954.80-68,143,432.20-21,159,815.80

Finding the Fourth Proportional to 45,428,954.80, 68,143,432.20 and 21,159,815.80

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Solution

The fourth proportional to 45,428,954.80, 68,143,432.20 and 21,159,815.80 is: 31,739,723.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,428,954.80 : 68,143,432.20 = 21,159,815.80 : x
  2. Step 2: Convert to fraction form
    45,428,954.80/68,143,432.20 = 21,159,815.80/x
  3. Step 3: Cross multiply
    45,428,954.80x = 68,143,432.20 × 21,159,815.80
  4. Step 4: Simplify right side
    45,428,954.80x = 1,441,902,473,331,788.75
  5. Step 5: Solve for x
    x = 1,441,902,473,331,788.75/45,428,954.80
  6. Step 6: Final answer
    x = 31,739,723.70

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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.