Home / 258,186,608.36-387,355,895.90-83,306,361.65

Finding the Fourth Proportional to 258,186,608.36, 387,355,895.90 and 83,306,361.65

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Solution

The fourth proportional to 258,186,608.36, 387,355,895.90 and 83,306,361.65 is: 124,984,059.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,186,608.36 : 387,355,895.90 = 83,306,361.65 : x
  2. Step 2: Convert to fraction form
    258,186,608.36/387,355,895.90 = 83,306,361.65/x
  3. Step 3: Cross multiply
    258,186,608.36x = 387,355,895.90 × 83,306,361.65
  4. Step 4: Simplify right side
    258,186,608.36x = 32,269,210,348,751,836
  5. Step 5: Solve for x
    x = 32,269,210,348,751,836/258,186,608.36
  6. Step 6: Final answer
    x = 124,984,059.22

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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.