Home / 20,696,165.74-31,047,990.81-8,559,039.88

Finding the Fourth Proportional to 20,696,165.74, 31,047,990.81 and 8,559,039.88

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Solution

The fourth proportional to 20,696,165.74, 31,047,990.81 and 8,559,039.88 is: 12,840,107.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,696,165.74 : 31,047,990.81 = 8,559,039.88 : x
  2. Step 2: Convert to fraction form
    20,696,165.74/31,047,990.81 = 8,559,039.88/x
  3. Step 3: Cross multiply
    20,696,165.74x = 31,047,990.81 × 8,559,039.88
  4. Step 4: Simplify right side
    20,696,165.74x = 265,740,991,536,663.53
  5. Step 5: Solve for x
    x = 265,740,991,536,663.53/20,696,165.74
  6. Step 6: Final answer
    x = 12,840,107.43

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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.