Home / 215,685,747,008.55-323,528,620,512.82-90,006,540,376.95

Finding the Fourth Proportional to 215,685,747,008.55, 323,528,620,512.82 and 90,006,540,376.95

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Solution

The fourth proportional to 215,685,747,008.55, 323,528,620,512.82 and 90,006,540,376.95 is: 135,009,810,565.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,685,747,008.55 : 323,528,620,512.82 = 90,006,540,376.95 : x
  2. Step 2: Convert to fraction form
    215,685,747,008.55/323,528,620,512.82 = 90,006,540,376.95/x
  3. Step 3: Cross multiply
    215,685,747,008.55x = 323,528,620,512.82 × 90,006,540,376.95
  4. Step 4: Simplify right side
    215,685,747,008.55x = 29,119,691,845,286,068,486,144
  5. Step 5: Solve for x
    x = 29,119,691,845,286,068,486,144/215,685,747,008.55
  6. Step 6: Final answer
    x = 135,009,810,565.42

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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.