Home / 7,762,821.12-10,712,766.56-4,278,287.03

Finding the Fourth Proportional to 7,762,821.12, 10,712,766.56 and 4,278,287.03

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Solution

The fourth proportional to 7,762,821.12, 10,712,766.56 and 4,278,287.03 is: 5,904,076.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,762,821.12 : 10,712,766.56 = 4,278,287.03 : x
  2. Step 2: Convert to fraction form
    7,762,821.12/10,712,766.56 = 4,278,287.03/x
  3. Step 3: Cross multiply
    7,762,821.12x = 10,712,766.56 × 4,278,287.03
  4. Step 4: Simplify right side
    7,762,821.12x = 45,832,290,154,110.45
  5. Step 5: Solve for x
    x = 45,832,290,154,110.45/7,762,821.12
  6. Step 6: Final answer
    x = 5,904,076.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.