Home / 255,405,143.23-352,459,084.25-137,930,462.12

Finding the Fourth Proportional to 255,405,143.23, 352,459,084.25 and 137,930,462.12

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Solution

The fourth proportional to 255,405,143.23, 352,459,084.25 and 137,930,462.12 is: 190,344,030.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,405,143.23 : 352,459,084.25 = 137,930,462.12 : x
  2. Step 2: Convert to fraction form
    255,405,143.23/352,459,084.25 = 137,930,462.12/x
  3. Step 3: Cross multiply
    255,405,143.23x = 352,459,084.25 × 137,930,462.12
  4. Step 4: Simplify right side
    255,405,143.23x = 48,614,844,368,994,512
  5. Step 5: Solve for x
    x = 48,614,844,368,994,512/255,405,143.23
  6. Step 6: Final answer
    x = 190,344,030.48

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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.