Home / 8,318,973.60-12,478,903.20-2,639,642.40

Finding the Fourth Proportional to 8,318,973.60, 12,478,903.20 and 2,639,642.40

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Solution

The fourth proportional to 8,318,973.60, 12,478,903.20 and 2,639,642.40 is: 3,959,604.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,318,973.60 : 12,478,903.20 = 2,639,642.40 : x
  2. Step 2: Convert to fraction form
    8,318,973.60/12,478,903.20 = 2,639,642.40/x
  3. Step 3: Cross multiply
    8,318,973.60x = 12,478,903.20 × 2,639,642.40
  4. Step 4: Simplify right side
    8,318,973.60x = 32,939,841,992,215.68
  5. Step 5: Solve for x
    x = 32,939,841,992,215.68/8,318,973.60
  6. Step 6: Final answer
    x = 3,959,604.10

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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.