Home / 820,195,955.27-1,131,870,383.47-443,852,554.68

Finding the Fourth Proportional to 820,195,955.27, 1,131,870,383.47 and 443,852,554.68

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Solution

The fourth proportional to 820,195,955.27, 1,131,870,383.47 and 443,852,554.68 is: 612,516,506.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,195,955.27 : 1,131,870,383.47 = 443,852,554.68 : x
  2. Step 2: Convert to fraction form
    820,195,955.27/1,131,870,383.47 = 443,852,554.68/x
  3. Step 3: Cross multiply
    820,195,955.27x = 1,131,870,383.47 × 443,852,554.68
  4. Step 4: Simplify right side
    820,195,955.27x = 502,383,561,268,681,088
  5. Step 5: Solve for x
    x = 502,383,561,268,681,088/820,195,955.27
  6. Step 6: Final answer
    x = 612,516,506.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.