Home / 12,291,319.60-18,436,979.40-6,551,756.80

Finding the Fourth Proportional to 12,291,319.60, 18,436,979.40 and 6,551,756.80

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Solution

The fourth proportional to 12,291,319.60, 18,436,979.40 and 6,551,756.80 is: 9,827,635.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,291,319.60 : 18,436,979.40 = 6,551,756.80 : x
  2. Step 2: Convert to fraction form
    12,291,319.60/18,436,979.40 = 6,551,756.80/x
  3. Step 3: Cross multiply
    12,291,319.60x = 18,436,979.40 × 6,551,756.80
  4. Step 4: Simplify right side
    12,291,319.60x = 120,794,605,155,409.91
  5. Step 5: Solve for x
    x = 120,794,605,155,409.91/12,291,319.60
  6. Step 6: Final answer
    x = 9,827,635.20

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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.