Home / 256,973,280.30-385,459,920.45-136,040,928.30

Finding the Fourth Proportional to 256,973,280.30, 385,459,920.45 and 136,040,928.30

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Solution

The fourth proportional to 256,973,280.30, 385,459,920.45 and 136,040,928.30 is: 204,061,392.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,973,280.30 : 385,459,920.45 = 136,040,928.30 : x
  2. Step 2: Convert to fraction form
    256,973,280.30/385,459,920.45 = 136,040,928.30/x
  3. Step 3: Cross multiply
    256,973,280.30x = 385,459,920.45 × 136,040,928.30
  4. Step 4: Simplify right side
    256,973,280.30x = 52,438,325,400,462,160
  5. Step 5: Solve for x
    x = 52,438,325,400,462,160/256,973,280.30
  6. Step 6: Final answer
    x = 204,061,392.45

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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.