Home / 134,868,131.80-186,118,019.53-72,988,470.36

Finding the Fourth Proportional to 134,868,131.80, 186,118,019.53 and 72,988,470.36

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Solution

The fourth proportional to 134,868,131.80, 186,118,019.53 and 72,988,470.36 is: 100,724,087.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,868,131.80 : 186,118,019.53 = 72,988,470.36 : x
  2. Step 2: Convert to fraction form
    134,868,131.80/186,118,019.53 = 72,988,470.36/x
  3. Step 3: Cross multiply
    134,868,131.80x = 186,118,019.53 × 72,988,470.36
  4. Step 4: Simplify right side
    134,868,131.80x = 13,584,469,551,744,836
  5. Step 5: Solve for x
    x = 13,584,469,551,744,836/134,868,131.80
  6. Step 6: Final answer
    x = 100,724,087.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.