Home / 1,418,409,919.80-2,125,823,289.30-689,829,823.80

Finding the Fourth Proportional to 1,418,409,919.80, 2,125,823,289.30 and 689,829,823.80

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Solution

The fourth proportional to 1,418,409,919.80, 2,125,823,289.30 and 689,829,823.80 is: 1,033,873,413.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418,409,919.80 : 2,125,823,289.30 = 689,829,823.80 : x
  2. Step 2: Convert to fraction form
    1,418,409,919.80/2,125,823,289.30 = 689,829,823.80/x
  3. Step 3: Cross multiply
    1,418,409,919.80x = 2,125,823,289.30 × 689,829,823.80
  4. Step 4: Simplify right side
    1,418,409,919.80x = 1,466,456,305,087,755,264
  5. Step 5: Solve for x
    x = 1,466,456,305,087,755,264/1,418,409,919.80
  6. Step 6: Final answer
    x = 1,033,873,413.19

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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.