Home / 144,757,013.36-199,766,701.44-78,677,491.79

Finding the Fourth Proportional to 144,757,013.36, 199,766,701.44 and 78,677,491.79

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Solution

The fourth proportional to 144,757,013.36, 199,766,701.44 and 78,677,491.79 is: 108,576,038.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,757,013.36 : 199,766,701.44 = 78,677,491.79 : x
  2. Step 2: Convert to fraction form
    144,757,013.36/199,766,701.44 = 78,677,491.79/x
  3. Step 3: Cross multiply
    144,757,013.36x = 199,766,701.44 × 78,677,491.79
  4. Step 4: Simplify right side
    144,757,013.36x = 15,717,143,012,960,398
  5. Step 5: Solve for x
    x = 15,717,143,012,960,398/144,757,013.36
  6. Step 6: Final answer
    x = 108,576,038.21

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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.