Home / 288,281,448.40-397,823,481.84-156,121,371.04

Finding the Fourth Proportional to 288,281,448.40, 397,823,481.84 and 156,121,371.04

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Solution

The fourth proportional to 288,281,448.40, 397,823,481.84 and 156,121,371.04 is: 215,444,829.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,281,448.40 : 397,823,481.84 = 156,121,371.04 : x
  2. Step 2: Convert to fraction form
    288,281,448.40/397,823,481.84 = 156,121,371.04/x
  3. Step 3: Cross multiply
    288,281,448.40x = 397,823,481.84 × 156,121,371.04
  4. Step 4: Simplify right side
    288,281,448.40x = 62,108,747,416,767,336
  5. Step 5: Solve for x
    x = 62,108,747,416,767,336/288,281,448.40
  6. Step 6: Final answer
    x = 215,444,829.22

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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.