Home / 20,861,620.40-31,267,547.40-8,731,060.40

Finding the Fourth Proportional to 20,861,620.40, 31,267,547.40 and 8,731,060.40

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Solution

The fourth proportional to 20,861,620.40, 31,267,547.40 and 8,731,060.40 is: 13,086,176.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,861,620.40 : 31,267,547.40 = 8,731,060.40 : x
  2. Step 2: Convert to fraction form
    20,861,620.40/31,267,547.40 = 8,731,060.40/x
  3. Step 3: Cross multiply
    20,861,620.40x = 31,267,547.40 × 8,731,060.40
  4. Step 4: Simplify right side
    20,861,620.40x = 272,998,844,909,262.97
  5. Step 5: Solve for x
    x = 272,998,844,909,262.97/20,861,620.40
  6. Step 6: Final answer
    x = 13,086,176.42

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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.