Home / 12,230,661.60-18,359,989.20-7,184,815.20

Finding the Fourth Proportional to 12,230,661.60, 18,359,989.20 and 7,184,815.20

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Solution

The fourth proportional to 12,230,661.60, 18,359,989.20 and 7,184,815.20 is: 10,785,445.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,230,661.60 : 18,359,989.20 = 7,184,815.20 : x
  2. Step 2: Convert to fraction form
    12,230,661.60/18,359,989.20 = 7,184,815.20/x
  3. Step 3: Cross multiply
    12,230,661.60x = 18,359,989.20 × 7,184,815.20
  4. Step 4: Simplify right side
    12,230,661.60x = 131,913,129,475,995.84
  5. Step 5: Solve for x
    x = 131,913,129,475,995.84/12,230,661.60
  6. Step 6: Final answer
    x = 10,785,445.12

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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.