Home / 258,719,781.60-388,079,672.40-122,670,885.60

Finding the Fourth Proportional to 258,719,781.60, 388,079,672.40 and 122,670,885.60

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Solution

The fourth proportional to 258,719,781.60, 388,079,672.40 and 122,670,885.60 is: 184,006,328.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,719,781.60 : 388,079,672.40 = 122,670,885.60 : x
  2. Step 2: Convert to fraction form
    258,719,781.60/388,079,672.40 = 122,670,885.60/x
  3. Step 3: Cross multiply
    258,719,781.60x = 388,079,672.40 × 122,670,885.60
  4. Step 4: Simplify right side
    258,719,781.60x = 47,606,077,096,665,872
  5. Step 5: Solve for x
    x = 47,606,077,096,665,872/258,719,781.60
  6. Step 6: Final answer
    x = 184,006,328.40

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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.