Home / 287,016,242.92-396,095,294.02-161,611,563.40

Finding the Fourth Proportional to 287,016,242.92, 396,095,294.02 and 161,611,563.40

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Solution

The fourth proportional to 287,016,242.92, 396,095,294.02 and 161,611,563.40 is: 223,031,209.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,016,242.92 : 396,095,294.02 = 161,611,563.40 : x
  2. Step 2: Convert to fraction form
    287,016,242.92/396,095,294.02 = 161,611,563.40/x
  3. Step 3: Cross multiply
    287,016,242.92x = 396,095,294.02 × 161,611,563.40
  4. Step 4: Simplify right side
    287,016,242.92x = 64,013,579,721,954,872
  5. Step 5: Solve for x
    x = 64,013,579,721,954,872/287,016,242.92
  6. Step 6: Final answer
    x = 223,031,209.21

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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.