Home / 18,743,854.37-28,117,015.18-4,911,151.81

Finding the Fourth Proportional to 18,743,854.37, 28,117,015.18 and 4,911,151.81

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Solution

The fourth proportional to 18,743,854.37, 28,117,015.18 and 4,911,151.81 is: 7,367,050.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,743,854.37 : 28,117,015.18 = 4,911,151.81 : x
  2. Step 2: Convert to fraction form
    18,743,854.37/28,117,015.18 = 4,911,151.81/x
  3. Step 3: Cross multiply
    18,743,854.37x = 28,117,015.18 × 4,911,151.81
  4. Step 4: Simplify right side
    18,743,854.37x = 138,086,930,076,812.88
  5. Step 5: Solve for x
    x = 138,086,930,076,812.88/18,743,854.37
  6. Step 6: Final answer
    x = 7,367,050.95

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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.