Home / 255,405,143.73-352,459,084.88-137,930,462.70

Finding the Fourth Proportional to 255,405,143.73, 352,459,084.88 and 137,930,462.70

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Solution

The fourth proportional to 255,405,143.73, 352,459,084.88 and 137,930,462.70 is: 190,344,031.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,405,143.73 : 352,459,084.88 = 137,930,462.70 : x
  2. Step 2: Convert to fraction form
    255,405,143.73/352,459,084.88 = 137,930,462.70/x
  3. Step 3: Cross multiply
    255,405,143.73x = 352,459,084.88 × 137,930,462.70
  4. Step 4: Simplify right side
    255,405,143.73x = 48,614,844,660,316,968
  5. Step 5: Solve for x
    x = 48,614,844,660,316,968/255,405,143.73
  6. Step 6: Final answer
    x = 190,344,031.25

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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.