Home / 288,649,848.10-398,394,659.40-171,240,348.10

Finding the Fourth Proportional to 288,649,848.10, 398,394,659.40 and 171,240,348.10

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Solution

The fourth proportional to 288,649,848.10, 398,394,659.40 and 171,240,348.10 is: 236,346,010.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,649,848.10 : 398,394,659.40 = 171,240,348.10 : x
  2. Step 2: Convert to fraction form
    288,649,848.10/398,394,659.40 = 171,240,348.10/x
  3. Step 3: Cross multiply
    288,649,848.10x = 398,394,659.40 × 171,240,348.10
  4. Step 4: Simplify right side
    288,649,848.10x = 68,221,240,156,836,928
  5. Step 5: Solve for x
    x = 68,221,240,156,836,928/288,649,848.10
  6. Step 6: Final answer
    x = 236,346,010.94

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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.