Home / 820,195,954.90-1,131,870,382.95-443,852,554.31

Finding the Fourth Proportional to 820,195,954.90, 1,131,870,382.95 and 443,852,554.31

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Solution

The fourth proportional to 820,195,954.90, 1,131,870,382.95 and 443,852,554.31 is: 612,516,506.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,195,954.90 : 1,131,870,382.95 = 443,852,554.31 : x
  2. Step 2: Convert to fraction form
    820,195,954.90/1,131,870,382.95 = 443,852,554.31/x
  3. Step 3: Cross multiply
    820,195,954.90x = 1,131,870,382.95 × 443,852,554.31
  4. Step 4: Simplify right side
    820,195,954.90x = 502,383,560,614,536,064
  5. Step 5: Solve for x
    x = 502,383,560,614,536,064/820,195,954.90
  6. Step 6: Final answer
    x = 612,516,506.10

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1.5x scale

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.