Home / 387,122,630.40-580,688,668.80-114,498,907.20

Finding the Fourth Proportional to 387,122,630.40, 580,688,668.80 and 114,498,907.20

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Solution

The fourth proportional to 387,122,630.40, 580,688,668.80 and 114,498,907.20 is: 171,749,757.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,122,630.40 : 580,688,668.80 = 114,498,907.20 : x
  2. Step 2: Convert to fraction form
    387,122,630.40/580,688,668.80 = 114,498,907.20/x
  3. Step 3: Cross multiply
    387,122,630.40x = 580,688,668.80 × 114,498,907.20
  4. Step 4: Simplify right side
    387,122,630.40x = 66,488,218,001,022,728
  5. Step 5: Solve for x
    x = 66,488,218,001,022,728/387,122,630.40
  6. Step 6: Final answer
    x = 171,749,757.78

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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.