Home / 144,093,518.90-198,846,682.44-78,013,488.86

Finding the Fourth Proportional to 144,093,518.90, 198,846,682.44 and 78,013,488.86

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Solution

The fourth proportional to 144,093,518.90, 198,846,682.44 and 78,013,488.86 is: 107,657,329.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,093,518.90 : 198,846,682.44 = 78,013,488.86 : x
  2. Step 2: Convert to fraction form
    144,093,518.90/198,846,682.44 = 78,013,488.86/x
  3. Step 3: Cross multiply
    144,093,518.90x = 198,846,682.44 × 78,013,488.86
  4. Step 4: Simplify right side
    144,093,518.90x = 15,512,723,445,380,898
  5. Step 5: Solve for x
    x = 15,512,723,445,380,898/144,093,518.90
  6. Step 6: Final answer
    x = 107,657,329.52

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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.