Home / 1,179,436,240.80-1,769,366,937.60-489,413,246.40

Finding the Fourth Proportional to 1,179,436,240.80, 1,769,366,937.60 and 489,413,246.40

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Solution

The fourth proportional to 1,179,436,240.80, 1,769,366,937.60 and 489,413,246.40 is: 734,208,079.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179,436,240.80 : 1,769,366,937.60 = 489,413,246.40 : x
  2. Step 2: Convert to fraction form
    1,179,436,240.80/1,769,366,937.60 = 489,413,246.40/x
  3. Step 3: Cross multiply
    1,179,436,240.80x = 1,769,366,937.60 × 489,413,246.40
  4. Step 4: Simplify right side
    1,179,436,240.80x = 865,951,617,003,642,112
  5. Step 5: Solve for x
    x = 865,951,617,003,642,112/1,179,436,240.80
  6. Step 6: Final answer
    x = 734,208,079.29

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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.