Home / 990,667,077.60-1,486,000,616.40-253,735,557.60

Finding the Fourth Proportional to 990,667,077.60, 1,486,000,616.40 and 253,735,557.60

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Solution

The fourth proportional to 990,667,077.60, 1,486,000,616.40 and 253,735,557.60 is: 380,603,336.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,667,077.60 : 1,486,000,616.40 = 253,735,557.60 : x
  2. Step 2: Convert to fraction form
    990,667,077.60/1,486,000,616.40 = 253,735,557.60/x
  3. Step 3: Cross multiply
    990,667,077.60x = 1,486,000,616.40 × 253,735,557.60
  4. Step 4: Simplify right side
    990,667,077.60x = 377,051,194,996,197,696
  5. Step 5: Solve for x
    x = 377,051,194,996,197,696/990,667,077.60
  6. Step 6: Final answer
    x = 380,603,336.40

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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.