Home / 315,103,684.95-472,336,662.83-185,644,657.35

Finding the Fourth Proportional to 315,103,684.95, 472,336,662.83 and 185,644,657.35

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Solution

The fourth proportional to 315,103,684.95, 472,336,662.83 and 185,644,657.35 is: 278,279,125.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,103,684.95 : 472,336,662.83 = 185,644,657.35 : x
  2. Step 2: Convert to fraction form
    315,103,684.95/472,336,662.83 = 185,644,657.35/x
  3. Step 3: Cross multiply
    315,103,684.95x = 472,336,662.83 × 185,644,657.35
  4. Step 4: Simplify right side
    315,103,684.95x = 87,686,777,923,989,600
  5. Step 5: Solve for x
    x = 87,686,777,923,989,600/315,103,684.95
  6. Step 6: Final answer
    x = 278,279,125.61

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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.