Home / 7,172,578.20-10,761,750.90-2,913,079.80

Finding the Fourth Proportional to 7,172,578.20, 10,761,750.90 and 2,913,079.80

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Solution

The fourth proportional to 7,172,578.20, 10,761,750.90 and 2,913,079.80 is: 4,370,790.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,172,578.20 : 10,761,750.90 = 2,913,079.80 : x
  2. Step 2: Convert to fraction form
    7,172,578.20/10,761,750.90 = 2,913,079.80/x
  3. Step 3: Cross multiply
    7,172,578.20x = 10,761,750.90 × 2,913,079.80
  4. Step 4: Simplify right side
    7,172,578.20x = 31,349,839,159,421.82
  5. Step 5: Solve for x
    x = 31,349,839,159,421.82/7,172,578.20
  6. Step 6: Final answer
    x = 4,370,790.85

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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.