Home / 144,756,999.82-199,766,682.84-78,677,478.26

Finding the Fourth Proportional to 144,756,999.82, 199,766,682.84 and 78,677,478.26

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Solution

The fourth proportional to 144,756,999.82, 199,766,682.84 and 78,677,478.26 is: 108,576,019.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,756,999.82 : 199,766,682.84 = 78,677,478.26 : x
  2. Step 2: Convert to fraction form
    144,756,999.82/199,766,682.84 = 78,677,478.26/x
  3. Step 3: Cross multiply
    144,756,999.82x = 199,766,682.84 × 78,677,478.26
  4. Step 4: Simplify right side
    144,756,999.82x = 15,717,138,846,434,044
  5. Step 5: Solve for x
    x = 15,717,138,846,434,044/144,756,999.82
  6. Step 6: Final answer
    x = 108,576,019.57

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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.