Home / 1,225,840,948.65-1,691,696,399.27-668,959,889.85

Finding the Fourth Proportional to 1,225,840,948.65, 1,691,696,399.27 and 668,959,889.85

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Solution

The fourth proportional to 1,225,840,948.65, 1,691,696,399.27 and 668,959,889.85 is: 923,184,233.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,840,948.65 : 1,691,696,399.27 = 668,959,889.85 : x
  2. Step 2: Convert to fraction form
    1,225,840,948.65/1,691,696,399.27 = 668,959,889.85/x
  3. Step 3: Cross multiply
    1,225,840,948.65x = 1,691,696,399.27 × 668,959,889.85
  4. Step 4: Simplify right side
    1,225,840,948.65x = 1,131,677,036,911,956,096
  5. Step 5: Solve for x
    x = 1,131,677,036,911,956,096/1,225,840,948.65
  6. Step 6: Final answer
    x = 923,184,233.78

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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.