Home / 287,880,949,597.79-397,288,198,513.12-159,422,398,214.92

Finding the Fourth Proportional to 287,880,949,597.79, 397,288,198,513.12 and 159,422,398,214.92

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Solution

The fourth proportional to 287,880,949,597.79, 397,288,198,513.12 and 159,422,398,214.92 is: 220,009,825,165.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,880,949,597.79 : 397,288,198,513.12 = 159,422,398,214.92 : x
  2. Step 2: Convert to fraction form
    287,880,949,597.79/397,288,198,513.12 = 159,422,398,214.92/x
  3. Step 3: Cross multiply
    287,880,949,597.79x = 397,288,198,513.12 × 159,422,398,214.92
  4. Step 4: Simplify right side
    287,880,949,597.79x = 63,336,637,389,446,813,057,024
  5. Step 5: Solve for x
    x = 63,336,637,389,446,813,057,024/287,880,949,597.79
  6. Step 6: Final answer
    x = 220,009,825,165.36

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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.