Home / 1,206,804,500.85-1,810,206,751.28-431,325,793.65

Finding the Fourth Proportional to 1,206,804,500.85, 1,810,206,751.28 and 431,325,793.65

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Solution

The fourth proportional to 1,206,804,500.85, 1,810,206,751.28 and 431,325,793.65 is: 646,988,690.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,804,500.85 : 1,810,206,751.28 = 431,325,793.65 : x
  2. Step 2: Convert to fraction form
    1,206,804,500.85/1,810,206,751.28 = 431,325,793.65/x
  3. Step 3: Cross multiply
    1,206,804,500.85x = 1,810,206,751.28 × 431,325,793.65
  4. Step 4: Simplify right side
    1,206,804,500.85x = 780,788,863,664,277,504
  5. Step 5: Solve for x
    x = 780,788,863,664,277,504/1,206,804,500.85
  6. Step 6: Final answer
    x = 646,988,690.48

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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.