Home / 12,118,399.68-18,161,894.01-4,921,573.17

Finding the Fourth Proportional to 12,118,399.68, 18,161,894.01 and 4,921,573.17

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Solution

The fourth proportional to 12,118,399.68, 18,161,894.01 and 4,921,573.17 is: 7,375,981.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,118,399.68 : 18,161,894.01 = 4,921,573.17 : x
  2. Step 2: Convert to fraction form
    12,118,399.68/18,161,894.01 = 4,921,573.17/x
  3. Step 3: Cross multiply
    12,118,399.68x = 18,161,894.01 × 4,921,573.17
  4. Step 4: Simplify right side
    12,118,399.68x = 89,385,090,275,999.72
  5. Step 5: Solve for x
    x = 89,385,090,275,999.72/12,118,399.68
  6. Step 6: Final answer
    x = 7,375,981.37

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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.