Home / 8,547,721.20-12,821,581.80-5,687,708.40

Finding the Fourth Proportional to 8,547,721.20, 12,821,581.80 and 5,687,708.40

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Solution

The fourth proportional to 8,547,721.20, 12,821,581.80 and 5,687,708.40 is: 8,531,562.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,547,721.20 : 12,821,581.80 = 5,687,708.40 : x
  2. Step 2: Convert to fraction form
    8,547,721.20/12,821,581.80 = 5,687,708.40/x
  3. Step 3: Cross multiply
    8,547,721.20x = 12,821,581.80 × 5,687,708.40
  4. Step 4: Simplify right side
    8,547,721.20x = 72,925,418,505,147.12
  5. Step 5: Solve for x
    x = 72,925,418,505,147.12/8,547,721.20
  6. Step 6: Final answer
    x = 8,531,562.60

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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.