Home / 489,640,216.80-734,288,864.40-144,502,456.80

Finding the Fourth Proportional to 489,640,216.80, 734,288,864.40 and 144,502,456.80

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Solution

The fourth proportional to 489,640,216.80, 734,288,864.40 and 144,502,456.80 is: 216,703,083.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,640,216.80 : 734,288,864.40 = 144,502,456.80 : x
  2. Step 2: Convert to fraction form
    489,640,216.80/734,288,864.40 = 144,502,456.80/x
  3. Step 3: Cross multiply
    489,640,216.80x = 734,288,864.40 × 144,502,456.80
  4. Step 4: Simplify right side
    489,640,216.80x = 106,106,544,906,682,064
  5. Step 5: Solve for x
    x = 106,106,544,906,682,064/489,640,216.80
  6. Step 6: Final answer
    x = 216,703,083.75

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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.