Home / 827,123,561.70-1,240,685,342.55-821,383,998.90

Finding the Fourth Proportional to 827,123,561.70, 1,240,685,342.55 and 821,383,998.90

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Solution

The fourth proportional to 827,123,561.70, 1,240,685,342.55 and 821,383,998.90 is: 1,232,075,998.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,123,561.70 : 1,240,685,342.55 = 821,383,998.90 : x
  2. Step 2: Convert to fraction form
    827,123,561.70/1,240,685,342.55 = 821,383,998.90/x
  3. Step 3: Cross multiply
    827,123,561.70x = 1,240,685,342.55 × 821,383,998.90
  4. Step 4: Simplify right side
    827,123,561.70x = 1,019,079,088,040,335,232
  5. Step 5: Solve for x
    x = 1,019,079,088,040,335,232/827,123,561.70
  6. Step 6: Final answer
    x = 1,232,075,998.35

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1.5x scale

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.