Home / 465,928,785.73-642,995,182.43-257,098,376.53

Finding the Fourth Proportional to 465,928,785.73, 642,995,182.43 and 257,098,376.53

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Solution

The fourth proportional to 465,928,785.73, 642,995,182.43 and 257,098,376.53 is: 354,803,185.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,928,785.73 : 642,995,182.43 = 257,098,376.53 : x
  2. Step 2: Convert to fraction form
    465,928,785.73/642,995,182.43 = 257,098,376.53/x
  3. Step 3: Cross multiply
    465,928,785.73x = 642,995,182.43 × 257,098,376.53
  4. Step 4: Simplify right side
    465,928,785.73x = 165,313,017,519,364,160
  5. Step 5: Solve for x
    x = 165,313,017,519,364,160/465,928,785.73
  6. Step 6: Final answer
    x = 354,803,185.77

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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.