Home / 256,973,281.80-385,459,922.70-136,040,929.80

Finding the Fourth Proportional to 256,973,281.80, 385,459,922.70 and 136,040,929.80

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Solution

The fourth proportional to 256,973,281.80, 385,459,922.70 and 136,040,929.80 is: 204,061,394.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,973,281.80 : 385,459,922.70 = 136,040,929.80 : x
  2. Step 2: Convert to fraction form
    256,973,281.80/385,459,922.70 = 136,040,929.80/x
  3. Step 3: Cross multiply
    256,973,281.80x = 385,459,922.70 × 136,040,929.80
  4. Step 4: Simplify right side
    256,973,281.80x = 52,438,326,284,744,128
  5. Step 5: Solve for x
    x = 52,438,326,284,744,128/256,973,281.80
  6. Step 6: Final answer
    x = 204,061,394.70

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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.