Home / 874,439,918.75-1,311,889,601.52-314,258,306.53

Finding the Fourth Proportional to 874,439,918.75, 1,311,889,601.52 and 314,258,306.53

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Solution

The fourth proportional to 874,439,918.75, 1,311,889,601.52 and 314,258,306.53 is: 471,470,018.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,439,918.75 : 1,311,889,601.52 = 314,258,306.53 : x
  2. Step 2: Convert to fraction form
    874,439,918.75/1,311,889,601.52 = 314,258,306.53/x
  3. Step 3: Cross multiply
    874,439,918.75x = 1,311,889,601.52 × 314,258,306.53
  4. Step 4: Simplify right side
    874,439,918.75x = 412,272,204,527,191,424
  5. Step 5: Solve for x
    x = 412,272,204,527,191,424/874,439,918.75
  6. Step 6: Final answer
    x = 471,470,018.34

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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.