Home / 208,656,272.20-312,984,408.30-72,296,336.20

Finding the Fourth Proportional to 208,656,272.20, 312,984,408.30 and 72,296,336.20

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Solution

The fourth proportional to 208,656,272.20, 312,984,408.30 and 72,296,336.20 is: 108,444,504.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,656,272.20 : 312,984,408.30 = 72,296,336.20 : x
  2. Step 2: Convert to fraction form
    208,656,272.20/312,984,408.30 = 72,296,336.20/x
  3. Step 3: Cross multiply
    208,656,272.20x = 312,984,408.30 × 72,296,336.20
  4. Step 4: Simplify right side
    208,656,272.20x = 22,627,626,007,814,872
  5. Step 5: Solve for x
    x = 22,627,626,007,814,872/208,656,272.20
  6. Step 6: Final answer
    x = 108,444,504.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.