Home / 265,721,078.20-398,581,617.30-188,236,980.40

Finding the Fourth Proportional to 265,721,078.20, 398,581,617.30 and 188,236,980.40

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Solution

The fourth proportional to 265,721,078.20, 398,581,617.30 and 188,236,980.40 is: 282,355,470.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,721,078.20 : 398,581,617.30 = 188,236,980.40 : x
  2. Step 2: Convert to fraction form
    265,721,078.20/398,581,617.30 = 188,236,980.40/x
  3. Step 3: Cross multiply
    265,721,078.20x = 398,581,617.30 × 188,236,980.40
  4. Step 4: Simplify right side
    265,721,078.20x = 75,027,800,083,500,400
  5. Step 5: Solve for x
    x = 75,027,800,083,500,400/265,721,078.20
  6. Step 6: Final answer
    x = 282,355,470.60

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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.