Home / 15,004,490.67-20,706,296.63-8,128,972.76

Finding the Fourth Proportional to 15,004,490.67, 20,706,296.63 and 8,128,972.76

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Solution

The fourth proportional to 15,004,490.67, 20,706,296.63 and 8,128,972.76 is: 11,218,036.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,004,490.67 : 20,706,296.63 = 8,128,972.76 : x
  2. Step 2: Convert to fraction form
    15,004,490.67/20,706,296.63 = 8,128,972.76/x
  3. Step 3: Cross multiply
    15,004,490.67x = 20,706,296.63 × 8,128,972.76
  4. Step 4: Simplify right side
    15,004,490.67x = 168,320,921,121,573.44
  5. Step 5: Solve for x
    x = 168,320,921,121,573.44/15,004,490.67
  6. Step 6: Final answer
    x = 11,218,036.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.