Home / 21,265,443.72-31,896,623.70-8,309,158.20

Finding the Fourth Proportional to 21,265,443.72, 31,896,623.70 and 8,309,158.20

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Solution

The fourth proportional to 21,265,443.72, 31,896,623.70 and 8,309,158.20 is: 12,463,134.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,265,443.72 : 31,896,623.70 = 8,309,158.20 : x
  2. Step 2: Convert to fraction form
    21,265,443.72/31,896,623.70 = 8,309,158.20/x
  3. Step 3: Cross multiply
    21,265,443.72x = 31,896,623.70 × 8,309,158.20
  4. Step 4: Simplify right side
    21,265,443.72x = 265,034,092,369,169.34
  5. Step 5: Solve for x
    x = 265,034,092,369,169.34/21,265,443.72
  6. Step 6: Final answer
    x = 12,463,134.83

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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.