Home / 256,914,672.30-385,260,034.05-103,509,744.30

Finding the Fourth Proportional to 256,914,672.30, 385,260,034.05 and 103,509,744.30

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Solution

The fourth proportional to 256,914,672.30, 385,260,034.05 and 103,509,744.30 is: 155,219,502.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,914,672.30 : 385,260,034.05 = 103,509,744.30 : x
  2. Step 2: Convert to fraction form
    256,914,672.30/385,260,034.05 = 103,509,744.30/x
  3. Step 3: Cross multiply
    256,914,672.30x = 385,260,034.05 × 103,509,744.30
  4. Step 4: Simplify right side
    256,914,672.30x = 39,878,167,613,524,792
  5. Step 5: Solve for x
    x = 39,878,167,613,524,792/256,914,672.30
  6. Step 6: Final answer
    x = 155,219,502.48

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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.