Home / 354,519,500.55-489,318,540.09-207,889,023.75

Finding the Fourth Proportional to 354,519,500.55, 489,318,540.09 and 207,889,023.75

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Solution

The fourth proportional to 354,519,500.55, 489,318,540.09 and 207,889,023.75 is: 286,934,719.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,519,500.55 : 489,318,540.09 = 207,889,023.75 : x
  2. Step 2: Convert to fraction form
    354,519,500.55/489,318,540.09 = 207,889,023.75/x
  3. Step 3: Cross multiply
    354,519,500.55x = 489,318,540.09 × 207,889,023.75
  4. Step 4: Simplify right side
    354,519,500.55x = 101,723,953,602,085,328
  5. Step 5: Solve for x
    x = 101,723,953,602,085,328/354,519,500.55
  6. Step 6: Final answer
    x = 286,934,719.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.