Home / 990,667,079.60-1,486,000,619.40-253,735,559.60

Finding the Fourth Proportional to 990,667,079.60, 1,486,000,619.40 and 253,735,559.60

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Solution

The fourth proportional to 990,667,079.60, 1,486,000,619.40 and 253,735,559.60 is: 380,603,339.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,667,079.60 : 1,486,000,619.40 = 253,735,559.60 : x
  2. Step 2: Convert to fraction form
    990,667,079.60/1,486,000,619.40 = 253,735,559.60/x
  3. Step 3: Cross multiply
    990,667,079.60x = 1,486,000,619.40 × 253,735,559.60
  4. Step 4: Simplify right side
    990,667,079.60x = 377,051,198,729,405,632
  5. Step 5: Solve for x
    x = 377,051,198,729,405,632/990,667,079.60
  6. Step 6: Final answer
    x = 380,603,339.40

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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.