Home / 7,172,579.20-10,761,752.40-2,913,080.80

Finding the Fourth Proportional to 7,172,579.20, 10,761,752.40 and 2,913,080.80

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Solution

The fourth proportional to 7,172,579.20, 10,761,752.40 and 2,913,080.80 is: 4,370,792.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,172,579.20 : 10,761,752.40 = 2,913,080.80 : x
  2. Step 2: Convert to fraction form
    7,172,579.20/10,761,752.40 = 2,913,080.80/x
  3. Step 3: Cross multiply
    7,172,579.20x = 10,761,752.40 × 2,913,080.80
  4. Step 4: Simplify right side
    7,172,579.20x = 31,349,854,290,793.92
  5. Step 5: Solve for x
    x = 31,349,854,290,793.92/7,172,579.20
  6. Step 6: Final answer
    x = 4,370,792.35

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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.