Home / 990,667,079.10-1,486,000,618.65-253,735,559.10

Finding the Fourth Proportional to 990,667,079.10, 1,486,000,618.65 and 253,735,559.10

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Solution

The fourth proportional to 990,667,079.10, 1,486,000,618.65 and 253,735,559.10 is: 380,603,338.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,667,079.10 : 1,486,000,618.65 = 253,735,559.10 : x
  2. Step 2: Convert to fraction form
    990,667,079.10/1,486,000,618.65 = 253,735,559.10/x
  3. Step 3: Cross multiply
    990,667,079.10x = 1,486,000,618.65 × 253,735,559.10
  4. Step 4: Simplify right side
    990,667,079.10x = 377,051,197,796,103,680
  5. Step 5: Solve for x
    x = 377,051,197,796,103,680/990,667,079.10
  6. Step 6: Final answer
    x = 380,603,338.65

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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.