Home / 1,338,263,120.78-1,846,852,947.84-802,502,012.80

Finding the Fourth Proportional to 1,338,263,120.78, 1,846,852,947.84 and 802,502,012.80

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Solution

The fourth proportional to 1,338,263,120.78, 1,846,852,947.84 and 802,502,012.80 is: 1,107,482,665.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,263,120.78 : 1,846,852,947.84 = 802,502,012.80 : x
  2. Step 2: Convert to fraction form
    1,338,263,120.78/1,846,852,947.84 = 802,502,012.80/x
  3. Step 3: Cross multiply
    1,338,263,120.78x = 1,846,852,947.84 × 802,502,012.80
  4. Step 4: Simplify right side
    1,338,263,120.78x = 1,482,103,207,977,978,880
  5. Step 5: Solve for x
    x = 1,482,103,207,977,978,880/1,338,263,120.78
  6. Step 6: Final answer
    x = 1,107,482,665.38

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Double scale
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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.