Home / 287,880,949,621.25-397,288,198,545.30-159,422,398,238.36

Finding the Fourth Proportional to 287,880,949,621.25, 397,288,198,545.30 and 159,422,398,238.36

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Solution

The fourth proportional to 287,880,949,621.25, 397,288,198,545.30 and 159,422,398,238.36 is: 220,009,825,197.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,880,949,621.25 : 397,288,198,545.30 = 159,422,398,238.36 : x
  2. Step 2: Convert to fraction form
    287,880,949,621.25/397,288,198,545.30 = 159,422,398,238.36/x
  3. Step 3: Cross multiply
    287,880,949,621.25x = 397,288,198,545.30 × 159,422,398,238.36
  4. Step 4: Simplify right side
    287,880,949,621.25x = 63,336,637,403,889,445,896,192
  5. Step 5: Solve for x
    x = 63,336,637,403,889,445,896,192/287,880,949,621.25
  6. Step 6: Final answer
    x = 220,009,825,197.60

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1.5x scale

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.