Home / 203,125,805.27-304,592,657.53-78,686,715.38

Finding the Fourth Proportional to 203,125,805.27, 304,592,657.53 and 78,686,715.38

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Solution

The fourth proportional to 203,125,805.27, 304,592,657.53 and 78,686,715.38 is: 117,992,865.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,125,805.27 : 304,592,657.53 = 78,686,715.38 : x
  2. Step 2: Convert to fraction form
    203,125,805.27/304,592,657.53 = 78,686,715.38/x
  3. Step 3: Cross multiply
    203,125,805.27x = 304,592,657.53 × 78,686,715.38
  4. Step 4: Simplify right side
    203,125,805.27x = 23,967,395,748,476,320
  5. Step 5: Solve for x
    x = 23,967,395,748,476,320/203,125,805.27
  6. Step 6: Final answer
    x = 117,992,865.15

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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.