Home / 258,907,315.80-388,360,973.70-67,431,091.80

Finding the Fourth Proportional to 258,907,315.80, 388,360,973.70 and 67,431,091.80

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Solution

The fourth proportional to 258,907,315.80, 388,360,973.70 and 67,431,091.80 is: 101,146,637.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,907,315.80 : 388,360,973.70 = 67,431,091.80 : x
  2. Step 2: Convert to fraction form
    258,907,315.80/388,360,973.70 = 67,431,091.80/x
  3. Step 3: Cross multiply
    258,907,315.80x = 388,360,973.70 × 67,431,091.80
  4. Step 4: Simplify right side
    258,907,315.80x = 26,187,604,469,102,084
  5. Step 5: Solve for x
    x = 26,187,604,469,102,084/258,907,315.80
  6. Step 6: Final answer
    x = 101,146,637.70

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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.