Home / 144,152,273.57-198,947,615.81-81,431,016.26

Finding the Fourth Proportional to 144,152,273.57, 198,947,615.81 and 81,431,016.26

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Solution

The fourth proportional to 144,152,273.57, 198,947,615.81 and 81,431,016.26 is: 112,384,675.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,152,273.57 : 198,947,615.81 = 81,431,016.26 : x
  2. Step 2: Convert to fraction form
    144,152,273.57/198,947,615.81 = 81,431,016.26/x
  3. Step 3: Cross multiply
    144,152,273.57x = 198,947,615.81 × 81,431,016.26
  4. Step 4: Simplify right side
    144,152,273.57x = 16,200,506,536,510,450
  5. Step 5: Solve for x
    x = 16,200,506,536,510,450/144,152,273.57
  6. Step 6: Final answer
    x = 112,384,675.84

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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.