Home / 386,714,594.68-533,679,031.17-217,198,705.12

Finding the Fourth Proportional to 386,714,594.68, 533,679,031.17 and 217,198,705.12

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Solution

The fourth proportional to 386,714,594.68, 533,679,031.17 and 217,198,705.12 is: 299,741,453.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,714,594.68 : 533,679,031.17 = 217,198,705.12 : x
  2. Step 2: Convert to fraction form
    386,714,594.68/533,679,031.17 = 217,198,705.12/x
  3. Step 3: Cross multiply
    386,714,594.68x = 533,679,031.17 × 217,198,705.12
  4. Step 4: Simplify right side
    386,714,594.68x = 115,914,394,519,820,128
  5. Step 5: Solve for x
    x = 115,914,394,519,820,128/386,714,594.68
  6. Step 6: Final answer
    x = 299,741,453.04

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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.