Home / 315,103,710.45-472,336,701.08-185,644,682.85

Finding the Fourth Proportional to 315,103,710.45, 472,336,701.08 and 185,644,682.85

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Solution

The fourth proportional to 315,103,710.45, 472,336,701.08 and 185,644,682.85 is: 278,279,163.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,103,710.45 : 472,336,701.08 = 185,644,682.85 : x
  2. Step 2: Convert to fraction form
    315,103,710.45/472,336,701.08 = 185,644,682.85/x
  3. Step 3: Cross multiply
    315,103,710.45x = 472,336,701.08 × 185,644,682.85
  4. Step 4: Simplify right side
    315,103,710.45x = 87,686,797,069,483,632
  5. Step 5: Solve for x
    x = 87,686,797,069,483,632/315,103,710.45
  6. Step 6: Final answer
    x = 278,279,163.85

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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.