Home / 1,225,840,949.65-1,691,696,400.65-668,959,890.85

Finding the Fourth Proportional to 1,225,840,949.65, 1,691,696,400.65 and 668,959,890.85

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Solution

The fourth proportional to 1,225,840,949.65, 1,691,696,400.65 and 668,959,890.85 is: 923,184,235.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,840,949.65 : 1,691,696,400.65 = 668,959,890.85 : x
  2. Step 2: Convert to fraction form
    1,225,840,949.65/1,691,696,400.65 = 668,959,890.85/x
  3. Step 3: Cross multiply
    1,225,840,949.65x = 1,691,696,400.65 × 668,959,890.85
  4. Step 4: Simplify right side
    1,225,840,949.65x = 1,131,677,039,530,161,920
  5. Step 5: Solve for x
    x = 1,131,677,039,530,161,920/1,225,840,949.65
  6. Step 6: Final answer
    x = 923,184,235.16

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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.