Home / 144,520,578.26-199,435,895.52-78,439,658.30

Finding the Fourth Proportional to 144,520,578.26, 199,435,895.52 and 78,439,658.30

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Solution

The fourth proportional to 144,520,578.26, 199,435,895.52 and 78,439,658.30 is: 108,245,370.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,520,578.26 : 199,435,895.52 = 78,439,658.30 : x
  2. Step 2: Convert to fraction form
    144,520,578.26/199,435,895.52 = 78,439,658.30/x
  3. Step 3: Cross multiply
    144,520,578.26x = 199,435,895.52 × 78,439,658.30
  4. Step 4: Simplify right side
    144,520,578.26x = 15,643,683,497,343,302
  5. Step 5: Solve for x
    x = 15,643,683,497,343,302/144,520,578.26
  6. Step 6: Final answer
    x = 108,245,370.21

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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.