Home / 265,966,479.20-398,949,718.80-163,929,807.20

Finding the Fourth Proportional to 265,966,479.20, 398,949,718.80 and 163,929,807.20

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Solution

The fourth proportional to 265,966,479.20, 398,949,718.80 and 163,929,807.20 is: 245,894,710.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,966,479.20 : 398,949,718.80 = 163,929,807.20 : x
  2. Step 2: Convert to fraction form
    265,966,479.20/398,949,718.80 = 163,929,807.20/x
  3. Step 3: Cross multiply
    265,966,479.20x = 398,949,718.80 × 163,929,807.20
  4. Step 4: Simplify right side
    265,966,479.20x = 65,399,750,485,378,216
  5. Step 5: Solve for x
    x = 65,399,750,485,378,216/265,966,479.20
  6. Step 6: Final answer
    x = 245,894,710.80

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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.