Home / 287,880,949,600-397,288,198,516.20-159,422,398,217.19

Finding the Fourth Proportional to 287,880,949,600, 397,288,198,516.20 and 159,422,398,217.19

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Solution

The fourth proportional to 287,880,949,600, 397,288,198,516.20 and 159,422,398,217.19 is: 220,009,825,168.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,880,949,600 : 397,288,198,516.20 = 159,422,398,217.19 : x
  2. Step 2: Convert to fraction form
    287,880,949,600/397,288,198,516.20 = 159,422,398,217.19/x
  3. Step 3: Cross multiply
    287,880,949,600x = 397,288,198,516.20 × 159,422,398,217.19
  4. Step 4: Simplify right side
    287,880,949,600x = 63,336,637,390,839,674,306,560
  5. Step 5: Solve for x
    x = 63,336,637,390,839,674,306,560/287,880,949,600
  6. Step 6: Final answer
    x = 220,009,825,168.51

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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.