Home / 215,518,296-323,280,243.36-71,911,128

Finding the Fourth Proportional to 215,518,296, 323,280,243.36 and 71,911,128

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Solution

The fourth proportional to 215,518,296, 323,280,243.36 and 71,911,128 is: 107,867,626.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,518,296 : 323,280,243.36 = 71,911,128 : x
  2. Step 2: Convert to fraction form
    215,518,296/323,280,243.36 = 71,911,128/x
  3. Step 3: Cross multiply
    215,518,296x = 323,280,243.36 × 71,911,128
  4. Step 4: Simplify right side
    215,518,296x = 23,247,446,960,132,112
  5. Step 5: Solve for x
    x = 23,247,446,960,132,112/215,518,296
  6. Step 6: Final answer
    x = 107,867,626.05

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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.