Home / 813,564,049.70-1,220,346,074.55-268,276,715.30

Finding the Fourth Proportional to 813,564,049.70, 1,220,346,074.55 and 268,276,715.30

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Solution

The fourth proportional to 813,564,049.70, 1,220,346,074.55 and 268,276,715.30 is: 402,415,072.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,564,049.70 : 1,220,346,074.55 = 268,276,715.30 : x
  2. Step 2: Convert to fraction form
    813,564,049.70/1,220,346,074.55 = 268,276,715.30/x
  3. Step 3: Cross multiply
    813,564,049.70x = 1,220,346,074.55 × 268,276,715.30
  4. Step 4: Simplify right side
    813,564,049.70x = 327,390,436,409,522,944
  5. Step 5: Solve for x
    x = 327,390,436,409,522,944/813,564,049.70
  6. Step 6: Final answer
    x = 402,415,072.95

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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.