Home / 8,256,378.60-12,384,567.90-6,555,767.40

Finding the Fourth Proportional to 8,256,378.60, 12,384,567.90 and 6,555,767.40

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Solution

The fourth proportional to 8,256,378.60, 12,384,567.90 and 6,555,767.40 is: 9,833,651.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,256,378.60 : 12,384,567.90 = 6,555,767.40 : x
  2. Step 2: Convert to fraction form
    8,256,378.60/12,384,567.90 = 6,555,767.40/x
  3. Step 3: Cross multiply
    8,256,378.60x = 12,384,567.90 × 6,555,767.40
  4. Step 4: Simplify right side
    8,256,378.60x = 81,190,346,501,906.47
  5. Step 5: Solve for x
    x = 81,190,346,501,906.47/8,256,378.60
  6. Step 6: Final answer
    x = 9,833,651.10

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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.