Home / 20,707,322.40-31,060,983.60-20,581,351.20

Finding the Fourth Proportional to 20,707,322.40, 31,060,983.60 and 20,581,351.20

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Solution

The fourth proportional to 20,707,322.40, 31,060,983.60 and 20,581,351.20 is: 30,872,026.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,707,322.40 : 31,060,983.60 = 20,581,351.20 : x
  2. Step 2: Convert to fraction form
    20,707,322.40/31,060,983.60 = 20,581,351.20/x
  3. Step 3: Cross multiply
    20,707,322.40x = 31,060,983.60 × 20,581,351.20
  4. Step 4: Simplify right side
    20,707,322.40x = 639,277,012,089,040.38
  5. Step 5: Solve for x
    x = 639,277,012,089,040.38/20,707,322.40
  6. Step 6: Final answer
    x = 30,872,026.80

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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.