Home / 438,719,460.38-605,079,835.26-385,682,767.73

Finding the Fourth Proportional to 438,719,460.38, 605,079,835.26 and 385,682,767.73

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Solution

The fourth proportional to 438,719,460.38, 605,079,835.26 and 385,682,767.73 is: 531,931,875.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,719,460.38 : 605,079,835.26 = 385,682,767.73 : x
  2. Step 2: Convert to fraction form
    438,719,460.38/605,079,835.26 = 385,682,767.73/x
  3. Step 3: Cross multiply
    438,719,460.38x = 605,079,835.26 × 385,682,767.73
  4. Step 4: Simplify right side
    438,719,460.38x = 233,368,865,560,689,248
  5. Step 5: Solve for x
    x = 233,368,865,560,689,248/438,719,460.38
  6. Step 6: Final answer
    x = 531,931,875.92

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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.