Home / 1,179,436,239.80-1,769,366,936.10-489,413,245.40

Finding the Fourth Proportional to 1,179,436,239.80, 1,769,366,936.10 and 489,413,245.40

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Solution

The fourth proportional to 1,179,436,239.80, 1,769,366,936.10 and 489,413,245.40 is: 734,208,077.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179,436,239.80 : 1,769,366,936.10 = 489,413,245.40 : x
  2. Step 2: Convert to fraction form
    1,179,436,239.80/1,769,366,936.10 = 489,413,245.40/x
  3. Step 3: Cross multiply
    1,179,436,239.80x = 1,769,366,936.10 × 489,413,245.40
  4. Step 4: Simplify right side
    1,179,436,239.80x = 865,951,614,500,155,392
  5. Step 5: Solve for x
    x = 865,951,614,500,155,392/1,179,436,239.80
  6. Step 6: Final answer
    x = 734,208,077.79

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Double scale
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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.