Home / 10,125,206.83-13,972,822.45-5,478,991.90

Finding the Fourth Proportional to 10,125,206.83, 13,972,822.45 and 5,478,991.90

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Solution

The fourth proportional to 10,125,206.83, 13,972,822.45 and 5,478,991.90 is: 7,561,028.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,125,206.83 : 13,972,822.45 = 5,478,991.90 : x
  2. Step 2: Convert to fraction form
    10,125,206.83/13,972,822.45 = 5,478,991.90/x
  3. Step 3: Cross multiply
    10,125,206.83x = 13,972,822.45 × 5,478,991.90
  4. Step 4: Simplify right side
    10,125,206.83x = 76,556,981,023,688.16
  5. Step 5: Solve for x
    x = 76,556,981,023,688.16/10,125,206.83
  6. Step 6: Final answer
    x = 7,561,028.86

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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.