Home / 1,328,052,888.66-1,991,942,454.33-442,642,579.86

Finding the Fourth Proportional to 1,328,052,888.66, 1,991,942,454.33 and 442,642,579.86

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Solution

The fourth proportional to 1,328,052,888.66, 1,991,942,454.33 and 442,642,579.86 is: 663,918,247.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,052,888.66 : 1,991,942,454.33 = 442,642,579.86 : x
  2. Step 2: Convert to fraction form
    1,328,052,888.66/1,991,942,454.33 = 442,642,579.86/x
  3. Step 3: Cross multiply
    1,328,052,888.66x = 1,991,942,454.33 × 442,642,579.86
  4. Step 4: Simplify right side
    1,328,052,888.66x = 881,718,546,917,291,392
  5. Step 5: Solve for x
    x = 881,718,546,917,291,392/1,328,052,888.66
  6. Step 6: Final answer
    x = 663,918,247.87

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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.