Home / 201,275,306.80-301,912,960.20-86,271,474.40

Finding the Fourth Proportional to 201,275,306.80, 301,912,960.20 and 86,271,474.40

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Solution

The fourth proportional to 201,275,306.80, 301,912,960.20 and 86,271,474.40 is: 129,407,211.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,275,306.80 : 301,912,960.20 = 86,271,474.40 : x
  2. Step 2: Convert to fraction form
    201,275,306.80/301,912,960.20 = 86,271,474.40/x
  3. Step 3: Cross multiply
    201,275,306.80x = 301,912,960.20 × 86,271,474.40
  4. Step 4: Simplify right side
    201,275,306.80x = 26,046,476,216,922,520
  5. Step 5: Solve for x
    x = 26,046,476,216,922,520/201,275,306.80
  6. Step 6: Final answer
    x = 129,407,211.60

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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.