Home / 465,928,780.48-642,995,175.18-257,098,371.28

Finding the Fourth Proportional to 465,928,780.48, 642,995,175.18 and 257,098,371.28

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Solution

The fourth proportional to 465,928,780.48, 642,995,175.18 and 257,098,371.28 is: 354,803,178.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,928,780.48 : 642,995,175.18 = 257,098,371.28 : x
  2. Step 2: Convert to fraction form
    465,928,780.48/642,995,175.18 = 257,098,371.28/x
  3. Step 3: Cross multiply
    465,928,780.48x = 642,995,175.18 × 257,098,371.28
  4. Step 4: Simplify right side
    465,928,780.48x = 165,313,012,279,676,256
  5. Step 5: Solve for x
    x = 165,313,012,279,676,256/465,928,780.48
  6. Step 6: Final answer
    x = 354,803,178.52

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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.