Home / 215,518,311-323,280,265.86-71,911,143

Finding the Fourth Proportional to 215,518,311, 323,280,265.86 and 71,911,143

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Solution

The fourth proportional to 215,518,311, 323,280,265.86 and 71,911,143 is: 107,867,648.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,518,311 : 323,280,265.86 = 71,911,143 : x
  2. Step 2: Convert to fraction form
    215,518,311/323,280,265.86 = 71,911,143/x
  3. Step 3: Cross multiply
    215,518,311x = 323,280,265.86 × 71,911,143
  4. Step 4: Simplify right side
    215,518,311x = 23,247,453,427,336,480
  5. Step 5: Solve for x
    x = 23,247,453,427,336,480/215,518,311
  6. Step 6: Final answer
    x = 107,867,648.55

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1.5x scale

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.