Home / 215,861,605.76-323,815,111.70-70,306,521.95

Finding the Fourth Proportional to 215,861,605.76, 323,815,111.70 and 70,306,521.95

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Solution

The fourth proportional to 215,861,605.76, 323,815,111.70 and 70,306,521.95 is: 105,467,177.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,861,605.76 : 323,815,111.70 = 70,306,521.95 : x
  2. Step 2: Convert to fraction form
    215,861,605.76/323,815,111.70 = 70,306,521.95/x
  3. Step 3: Cross multiply
    215,861,605.76x = 323,815,111.70 × 70,306,521.95
  4. Step 4: Simplify right side
    215,861,605.76x = 22,766,314,258,935,756
  5. Step 5: Solve for x
    x = 22,766,314,258,935,756/215,861,605.76
  6. Step 6: Final answer
    x = 105,467,177.35

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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.