Home / 511,534,166.32-705,888,165.81-288,502,517.58

Finding the Fourth Proportional to 511,534,166.32, 705,888,165.81 and 288,502,517.58

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Solution

The fourth proportional to 511,534,166.32, 705,888,165.81 and 288,502,517.58 is: 398,117,127.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,534,166.32 : 705,888,165.81 = 288,502,517.58 : x
  2. Step 2: Convert to fraction form
    511,534,166.32/705,888,165.81 = 288,502,517.58/x
  3. Step 3: Cross multiply
    511,534,166.32x = 705,888,165.81 × 288,502,517.58
  4. Step 4: Simplify right side
    511,534,166.32x = 203,650,512,964,548,288
  5. Step 5: Solve for x
    x = 203,650,512,964,548,288/511,534,166.32
  6. Step 6: Final answer
    x = 398,117,127.60

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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.