Home / 131,131,847.76-180,985,643.64-78,211,951.44

Finding the Fourth Proportional to 131,131,847.76, 180,985,643.64 and 78,211,951.44

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Solution

The fourth proportional to 131,131,847.76, 180,985,643.64 and 78,211,951.44 is: 107,946,624.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,131,847.76 : 180,985,643.64 = 78,211,951.44 : x
  2. Step 2: Convert to fraction form
    131,131,847.76/180,985,643.64 = 78,211,951.44/x
  3. Step 3: Cross multiply
    131,131,847.76x = 180,985,643.64 × 78,211,951.44
  4. Step 4: Simplify right side
    131,131,847.76x = 14,155,240,371,708,824
  5. Step 5: Solve for x
    x = 14,155,240,371,708,824/131,131,847.76
  6. Step 6: Final answer
    x = 107,946,624.82

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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.