Home / 20,787,757.80-31,146,207.30-17,740,829.40

Finding the Fourth Proportional to 20,787,757.80, 31,146,207.30 and 17,740,829.40

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Solution

The fourth proportional to 20,787,757.80, 31,146,207.30 and 17,740,829.40 is: 26,581,007.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,787,757.80 : 31,146,207.30 = 17,740,829.40 : x
  2. Step 2: Convert to fraction form
    20,787,757.80/31,146,207.30 = 17,740,829.40/x
  3. Step 3: Cross multiply
    20,787,757.80x = 31,146,207.30 × 17,740,829.40
  4. Step 4: Simplify right side
    20,787,757.80x = 552,559,550,166,334.56
  5. Step 5: Solve for x
    x = 552,559,550,166,334.56/20,787,757.80
  6. Step 6: Final answer
    x = 26,581,007.70

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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.