Home / 541,678,512.12-812,261,635.25-209,840,945.64

Finding the Fourth Proportional to 541,678,512.12, 812,261,635.25 and 209,840,945.64

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Solution

The fourth proportional to 541,678,512.12, 812,261,635.25 and 209,840,945.64 is: 314,662,195.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,678,512.12 : 812,261,635.25 = 209,840,945.64 : x
  2. Step 2: Convert to fraction form
    541,678,512.12/812,261,635.25 = 209,840,945.64/x
  3. Step 3: Cross multiply
    541,678,512.12x = 812,261,635.25 × 209,840,945.64
  4. Step 4: Simplify right side
    541,678,512.12x = 170,445,749,646,903,552
  5. Step 5: Solve for x
    x = 170,445,749,646,903,552/541,678,512.12
  6. Step 6: Final answer
    x = 314,662,195.07

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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.