Home / 12,129,167.10-18,193,750.65-4,936,998.90

Finding the Fourth Proportional to 12,129,167.10, 18,193,750.65 and 4,936,998.90

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Solution

The fourth proportional to 12,129,167.10, 18,193,750.65 and 4,936,998.90 is: 7,405,498.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,129,167.10 : 18,193,750.65 = 4,936,998.90 : x
  2. Step 2: Convert to fraction form
    12,129,167.10/18,193,750.65 = 4,936,998.90/x
  3. Step 3: Cross multiply
    12,129,167.10x = 18,193,750.65 × 4,936,998.90
  4. Step 4: Simplify right side
    12,129,167.10x = 89,822,526,945,924.28
  5. Step 5: Solve for x
    x = 89,822,526,945,924.28/12,129,167.10
  6. Step 6: Final answer
    x = 7,405,498.35

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1.5x scale

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.