Home / 990,667,078.60-1,486,000,617.90-253,735,558.60

Finding the Fourth Proportional to 990,667,078.60, 1,486,000,617.90 and 253,735,558.60

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Solution

The fourth proportional to 990,667,078.60, 1,486,000,617.90 and 253,735,558.60 is: 380,603,337.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,667,078.60 : 1,486,000,617.90 = 253,735,558.60 : x
  2. Step 2: Convert to fraction form
    990,667,078.60/1,486,000,617.90 = 253,735,558.60/x
  3. Step 3: Cross multiply
    990,667,078.60x = 1,486,000,617.90 × 253,735,558.60
  4. Step 4: Simplify right side
    990,667,078.60x = 377,051,196,862,801,664
  5. Step 5: Solve for x
    x = 377,051,196,862,801,664/990,667,078.60
  6. Step 6: Final answer
    x = 380,603,337.90

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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.