Home / 256,317,665.88-353,720,077.28-138,842,996.12

Finding the Fourth Proportional to 256,317,665.88, 353,720,077.28 and 138,842,996.12

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Solution

The fourth proportional to 256,317,665.88, 353,720,077.28 and 138,842,996.12 is: 191,604,254.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,317,665.88 : 353,720,077.28 = 138,842,996.12 : x
  2. Step 2: Convert to fraction form
    256,317,665.88/353,720,077.28 = 138,842,996.12/x
  3. Step 3: Cross multiply
    256,317,665.88x = 353,720,077.28 × 138,842,996.12
  4. Step 4: Simplify right side
    256,317,665.88x = 49,111,555,314,890,328
  5. Step 5: Solve for x
    x = 49,111,555,314,890,328/256,317,665.88
  6. Step 6: Final answer
    x = 191,604,254.61

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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.