Home / 288,861,730.37-398,629,187.95-165,105,064.70

Finding the Fourth Proportional to 288,861,730.37, 398,629,187.95 and 165,105,064.70

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Solution

The fourth proportional to 288,861,730.37, 398,629,187.95 and 165,105,064.70 is: 227,844,989.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,861,730.37 : 398,629,187.95 = 165,105,064.70 : x
  2. Step 2: Convert to fraction form
    288,861,730.37/398,629,187.95 = 165,105,064.70/x
  3. Step 3: Cross multiply
    288,861,730.37x = 398,629,187.95 × 165,105,064.70
  4. Step 4: Simplify right side
    288,861,730.37x = 65,815,697,867,793,200
  5. Step 5: Solve for x
    x = 65,815,697,867,793,200/288,861,730.37
  6. Step 6: Final answer
    x = 227,844,989.31

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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.