Home / 155,656,388.92-214,806,249.64-85,092,851.76

Finding the Fourth Proportional to 155,656,388.92, 214,806,249.64 and 85,092,851.76

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Solution

The fourth proportional to 155,656,388.92, 214,806,249.64 and 85,092,851.76 is: 117,428,372.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,656,388.92 : 214,806,249.64 = 85,092,851.76 : x
  2. Step 2: Convert to fraction form
    155,656,388.92/214,806,249.64 = 85,092,851.76/x
  3. Step 3: Cross multiply
    155,656,388.92x = 214,806,249.64 × 85,092,851.76
  4. Step 4: Simplify right side
    155,656,388.92x = 18,278,476,357,738,072
  5. Step 5: Solve for x
    x = 18,278,476,357,738,072/155,656,388.92
  6. Step 6: Final answer
    x = 117,428,372.10

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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.