Home / 6,480,041.60-9,720,062.40-3,929,124.80

Finding the Fourth Proportional to 6,480,041.60, 9,720,062.40 and 3,929,124.80

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Solution

The fourth proportional to 6,480,041.60, 9,720,062.40 and 3,929,124.80 is: 5,893,687.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,480,041.60 : 9,720,062.40 = 3,929,124.80 : x
  2. Step 2: Convert to fraction form
    6,480,041.60/9,720,062.40 = 3,929,124.80/x
  3. Step 3: Cross multiply
    6,480,041.60x = 9,720,062.40 × 3,929,124.80
  4. Step 4: Simplify right side
    6,480,041.60x = 38,191,338,233,387.52
  5. Step 5: Solve for x
    x = 38,191,338,233,387.52/6,480,041.60
  6. Step 6: Final answer
    x = 5,893,687.20

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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.