Home / 31,344,666.30-47,016,999.45-21,140,999.10

Finding the Fourth Proportional to 31,344,666.30, 47,016,999.45 and 21,140,999.10

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Solution

The fourth proportional to 31,344,666.30, 47,016,999.45 and 21,140,999.10 is: 31,711,498.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,344,666.30 : 47,016,999.45 = 21,140,999.10 : x
  2. Step 2: Convert to fraction form
    31,344,666.30/47,016,999.45 = 21,140,999.10/x
  3. Step 3: Cross multiply
    31,344,666.30x = 47,016,999.45 × 21,140,999.10
  4. Step 4: Simplify right side
    31,344,666.30x = 993,986,343,057,150.62
  5. Step 5: Solve for x
    x = 993,986,343,057,150.62/31,344,666.30
  6. Step 6: Final answer
    x = 31,711,498.65

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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.