Home / 265,964,911.20-398,947,366.80-163,928,239.20

Finding the Fourth Proportional to 265,964,911.20, 398,947,366.80 and 163,928,239.20

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Solution

The fourth proportional to 265,964,911.20, 398,947,366.80 and 163,928,239.20 is: 245,892,358.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,964,911.20 : 398,947,366.80 = 163,928,239.20 : x
  2. Step 2: Convert to fraction form
    265,964,911.20/398,947,366.80 = 163,928,239.20/x
  3. Step 3: Cross multiply
    265,964,911.20x = 398,947,366.80 × 163,928,239.20
  4. Step 4: Simplify right side
    265,964,911.20x = 65,398,739,373,000,536
  5. Step 5: Solve for x
    x = 65,398,739,373,000,536/265,964,911.20
  6. Step 6: Final answer
    x = 245,892,358.80

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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.