Home / 256,231,139.44-353,599,313.16-138,756,672.04

Finding the Fourth Proportional to 256,231,139.44, 353,599,313.16 and 138,756,672.04

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Solution

The fourth proportional to 256,231,139.44, 353,599,313.16 and 138,756,672.04 is: 191,484,391.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,231,139.44 : 353,599,313.16 = 138,756,672.04 : x
  2. Step 2: Convert to fraction form
    256,231,139.44/353,599,313.16 = 138,756,672.04/x
  3. Step 3: Cross multiply
    256,231,139.44x = 353,599,313.16 × 138,756,672.04
  4. Step 4: Simplify right side
    256,231,139.44x = 49,064,263,929,711,376
  5. Step 5: Solve for x
    x = 49,064,263,929,711,376/256,231,139.44
  6. Step 6: Final answer
    x = 191,484,391.93

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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.