Home / 820,711,867.32-1,231,143,480-268,017,192.18

Finding the Fourth Proportional to 820,711,867.32, 1,231,143,480 and 268,017,192.18

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Solution

The fourth proportional to 820,711,867.32, 1,231,143,480 and 268,017,192.18 is: 402,050,502.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,711,867.32 : 1,231,143,480 = 268,017,192.18 : x
  2. Step 2: Convert to fraction form
    820,711,867.32/1,231,143,480 = 268,017,192.18/x
  3. Step 3: Cross multiply
    820,711,867.32x = 1,231,143,480 × 268,017,192.18
  4. Step 4: Simplify right side
    820,711,867.32x = 329,967,618,680,313,984
  5. Step 5: Solve for x
    x = 329,967,618,680,313,984/820,711,867.32
  6. Step 6: Final answer
    x = 402,050,502.52

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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.