Home / 12,382,430.70-18,536,904.45-9,201,657.90

Finding the Fourth Proportional to 12,382,430.70, 18,536,904.45 and 9,201,657.90

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Solution

The fourth proportional to 12,382,430.70, 18,536,904.45 and 9,201,657.90 is: 13,775,183.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,382,430.70 : 18,536,904.45 = 9,201,657.90 : x
  2. Step 2: Convert to fraction form
    12,382,430.70/18,536,904.45 = 9,201,657.90/x
  3. Step 3: Cross multiply
    12,382,430.70x = 18,536,904.45 × 9,201,657.90
  4. Step 4: Simplify right side
    12,382,430.70x = 170,570,253,273,887.66
  5. Step 5: Solve for x
    x = 170,570,253,273,887.66/12,382,430.70
  6. Step 6: Final answer
    x = 13,775,183.36

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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.