Home / 622,852,764.56-859,131,811.98-399,480,638.87

Finding the Fourth Proportional to 622,852,764.56, 859,131,811.98 and 399,480,638.87

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Solution

The fourth proportional to 622,852,764.56, 859,131,811.98 and 399,480,638.87 is: 551,023,523.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,852,764.56 : 859,131,811.98 = 399,480,638.87 : x
  2. Step 2: Convert to fraction form
    622,852,764.56/859,131,811.98 = 399,480,638.87/x
  3. Step 3: Cross multiply
    622,852,764.56x = 859,131,811.98 × 399,480,638.87
  4. Step 4: Simplify right side
    622,852,764.56x = 343,206,525,119,015,488
  5. Step 5: Solve for x
    x = 343,206,525,119,015,488/622,852,764.56
  6. Step 6: Final answer
    x = 551,023,523.78

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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.