Home / 511,534,169.32-705,888,169.96-288,502,520.58

Finding the Fourth Proportional to 511,534,169.32, 705,888,169.96 and 288,502,520.58

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Solution

The fourth proportional to 511,534,169.32, 705,888,169.96 and 288,502,520.58 is: 398,117,131.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,534,169.32 : 705,888,169.96 = 288,502,520.58 : x
  2. Step 2: Convert to fraction form
    511,534,169.32/705,888,169.96 = 288,502,520.58/x
  3. Step 3: Cross multiply
    511,534,169.32x = 705,888,169.96 × 288,502,520.58
  4. Step 4: Simplify right side
    511,534,169.32x = 203,650,516,281,063,424
  5. Step 5: Solve for x
    x = 203,650,516,281,063,424/511,534,169.32
  6. Step 6: Final answer
    x = 398,117,131.75

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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.