Home / 20,373,939.44-28,113,484.53-13,772,890.49

Finding the Fourth Proportional to 20,373,939.44, 28,113,484.53 and 13,772,890.49

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Solution

The fourth proportional to 20,373,939.44, 28,113,484.53 and 13,772,890.49 is: 19,004,863.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,373,939.44 : 28,113,484.53 = 13,772,890.49 : x
  2. Step 2: Convert to fraction form
    20,373,939.44/28,113,484.53 = 13,772,890.49/x
  3. Step 3: Cross multiply
    20,373,939.44x = 28,113,484.53 × 13,772,890.49
  4. Step 4: Simplify right side
    20,373,939.44x = 387,203,943,596,350.62
  5. Step 5: Solve for x
    x = 387,203,943,596,350.62/20,373,939.44
  6. Step 6: Final answer
    x = 19,004,863.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.