Home / 12,191,921.39-18,275,080.55-4,102,088.72

Finding the Fourth Proportional to 12,191,921.39, 18,275,080.55 and 4,102,088.72

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Solution

The fourth proportional to 12,191,921.39, 18,275,080.55 and 4,102,088.72 is: 6,148,825.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,191,921.39 : 18,275,080.55 = 4,102,088.72 : x
  2. Step 2: Convert to fraction form
    12,191,921.39/18,275,080.55 = 4,102,088.72/x
  3. Step 3: Cross multiply
    12,191,921.39x = 18,275,080.55 × 4,102,088.72
  4. Step 4: Simplify right side
    12,191,921.39x = 74,966,001,669,360.55
  5. Step 5: Solve for x
    x = 74,966,001,669,360.55/12,191,921.39
  6. Step 6: Final answer
    x = 6,148,825.87

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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.