Home / 209,280,040.80-313,976,048.40-148,813,864.80

Finding the Fourth Proportional to 209,280,040.80, 313,976,048.40 and 148,813,864.80

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Solution

The fourth proportional to 209,280,040.80, 313,976,048.40 and 148,813,864.80 is: 223,260,608.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,280,040.80 : 313,976,048.40 = 148,813,864.80 : x
  2. Step 2: Convert to fraction form
    209,280,040.80/313,976,048.40 = 148,813,864.80/x
  3. Step 3: Cross multiply
    209,280,040.80x = 313,976,048.40 × 148,813,864.80
  4. Step 4: Simplify right side
    209,280,040.80x = 46,723,989,217,035,856
  5. Step 5: Solve for x
    x = 46,723,989,217,035,856/209,280,040.80
  6. Step 6: Final answer
    x = 223,260,608.31

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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.