Home / 144,093,561.48-198,846,741.08-78,013,531.44

Finding the Fourth Proportional to 144,093,561.48, 198,846,741.08 and 78,013,531.44

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Solution

The fourth proportional to 144,093,561.48, 198,846,741.08 and 78,013,531.44 is: 107,657,388.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,093,561.48 : 198,846,741.08 = 78,013,531.44 : x
  2. Step 2: Convert to fraction form
    144,093,561.48/198,846,741.08 = 78,013,531.44/x
  3. Step 3: Cross multiply
    144,093,561.48x = 198,846,741.08 × 78,013,531.44
  4. Step 4: Simplify right side
    144,093,561.48x = 15,512,736,486,986,120
  5. Step 5: Solve for x
    x = 15,512,736,486,986,120/144,093,561.48
  6. Step 6: Final answer
    x = 107,657,388.21

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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.