Home / 1,120,620,947.31-1,683,482,337.72-810,684,556.11

Finding the Fourth Proportional to 1,120,620,947.31, 1,683,482,337.72 and 810,684,556.11

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Solution

The fourth proportional to 1,120,620,947.31, 1,683,482,337.72 and 810,684,556.11 is: 1,217,872,229.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,620,947.31 : 1,683,482,337.72 = 810,684,556.11 : x
  2. Step 2: Convert to fraction form
    1,120,620,947.31/1,683,482,337.72 = 810,684,556.11/x
  3. Step 3: Cross multiply
    1,120,620,947.31x = 1,683,482,337.72 × 810,684,556.11
  4. Step 4: Simplify right side
    1,120,620,947.31x = 1,364,773,131,673,563,392
  5. Step 5: Solve for x
    x = 1,364,773,131,673,563,392/1,120,620,947.31
  6. Step 6: Final answer
    x = 1,217,872,229.63

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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.