Home / 820,711,856.21-1,231,143,463.57-268,017,181.17

Finding the Fourth Proportional to 820,711,856.21, 1,231,143,463.57 and 268,017,181.17

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Solution

The fourth proportional to 820,711,856.21, 1,231,143,463.57 and 268,017,181.17 is: 402,050,486.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,711,856.21 : 1,231,143,463.57 = 268,017,181.17 : x
  2. Step 2: Convert to fraction form
    820,711,856.21/1,231,143,463.57 = 268,017,181.17/x
  3. Step 3: Cross multiply
    820,711,856.21x = 1,231,143,463.57 × 268,017,181.17
  4. Step 4: Simplify right side
    820,711,856.21x = 329,967,600,716,615,168
  5. Step 5: Solve for x
    x = 329,967,600,716,615,168/820,711,856.21
  6. Step 6: Final answer
    x = 402,050,486.08

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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.