Home / 288,649,847.10-398,394,658.02-171,240,347.10

Finding the Fourth Proportional to 288,649,847.10, 398,394,658.02 and 171,240,347.10

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Solution

The fourth proportional to 288,649,847.10, 398,394,658.02 and 171,240,347.10 is: 236,346,009.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,649,847.10 : 398,394,658.02 = 171,240,347.10 : x
  2. Step 2: Convert to fraction form
    288,649,847.10/398,394,658.02 = 171,240,347.10/x
  3. Step 3: Cross multiply
    288,649,847.10x = 398,394,658.02 × 171,240,347.10
  4. Step 4: Simplify right side
    288,649,847.10x = 68,221,239,522,130,592
  5. Step 5: Solve for x
    x = 68,221,239,522,130,592/288,649,847.10
  6. Step 6: Final answer
    x = 236,346,009.56

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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.