Home / 215,685,747,011.80-323,528,620,517.70-90,006,540,380.20

Finding the Fourth Proportional to 215,685,747,011.80, 323,528,620,517.70 and 90,006,540,380.20

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Solution

The fourth proportional to 215,685,747,011.80, 323,528,620,517.70 and 90,006,540,380.20 is: 135,009,810,570.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,685,747,011.80 : 323,528,620,517.70 = 90,006,540,380.20 : x
  2. Step 2: Convert to fraction form
    215,685,747,011.80/323,528,620,517.70 = 90,006,540,380.20/x
  3. Step 3: Cross multiply
    215,685,747,011.80x = 323,528,620,517.70 × 90,006,540,380.20
  4. Step 4: Simplify right side
    215,685,747,011.80x = 29,119,691,846,776,766,070,784
  5. Step 5: Solve for x
    x = 29,119,691,846,776,766,070,784/215,685,747,011.80
  6. Step 6: Final answer
    x = 135,009,810,570.30

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1.5x scale

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.