Home / 3,219,377.60-4,829,066.40-2,155,620.80

Finding the Fourth Proportional to 3,219,377.60, 4,829,066.40 and 2,155,620.80

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Solution

The fourth proportional to 3,219,377.60, 4,829,066.40 and 2,155,620.80 is: 3,233,431.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219,377.60 : 4,829,066.40 = 2,155,620.80 : x
  2. Step 2: Convert to fraction form
    3,219,377.60/4,829,066.40 = 2,155,620.80/x
  3. Step 3: Cross multiply
    3,219,377.60x = 4,829,066.40 × 2,155,620.80
  4. Step 4: Simplify right side
    3,219,377.60x = 10,409,635,976,421.12
  5. Step 5: Solve for x
    x = 10,409,635,976,421.12/3,219,377.60
  6. Step 6: Final answer
    x = 3,233,431.20

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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.