Home / 4,752,145.20-7,128,217.80-2,512,657.20

Finding the Fourth Proportional to 4,752,145.20, 7,128,217.80 and 2,512,657.20

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Solution

The fourth proportional to 4,752,145.20, 7,128,217.80 and 2,512,657.20 is: 3,768,985.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,752,145.20 : 7,128,217.80 = 2,512,657.20 : x
  2. Step 2: Convert to fraction form
    4,752,145.20/7,128,217.80 = 2,512,657.20/x
  3. Step 3: Cross multiply
    4,752,145.20x = 7,128,217.80 × 2,512,657.20
  4. Step 4: Simplify right side
    4,752,145.20x = 17,910,767,778,338.16
  5. Step 5: Solve for x
    x = 17,910,767,778,338.16/4,752,145.20
  6. Step 6: Final answer
    x = 3,768,985.80

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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.