Home / 255,405,143.76-352,459,084.88-137,930,462.68

Finding the Fourth Proportional to 255,405,143.76, 352,459,084.88 and 137,930,462.68

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Solution

The fourth proportional to 255,405,143.76, 352,459,084.88 and 137,930,462.68 is: 190,344,031.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,405,143.76 : 352,459,084.88 = 137,930,462.68 : x
  2. Step 2: Convert to fraction form
    255,405,143.76/352,459,084.88 = 137,930,462.68/x
  3. Step 3: Cross multiply
    255,405,143.76x = 352,459,084.88 × 137,930,462.68
  4. Step 4: Simplify right side
    255,405,143.76x = 48,614,844,653,267,792
  5. Step 5: Solve for x
    x = 48,614,844,653,267,792/255,405,143.76
  6. Step 6: Final answer
    x = 190,344,031.20

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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.