Home / 21,928,921.59-30,262,151.16-12,139,529.25

Finding the Fourth Proportional to 21,928,921.59, 30,262,151.16 and 12,139,529.25

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Solution

The fourth proportional to 21,928,921.59, 30,262,151.16 and 12,139,529.25 is: 16,752,682.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,928,921.59 : 30,262,151.16 = 12,139,529.25 : x
  2. Step 2: Convert to fraction form
    21,928,921.59/30,262,151.16 = 12,139,529.25/x
  3. Step 3: Cross multiply
    21,928,921.59x = 30,262,151.16 × 12,139,529.25
  4. Step 4: Simplify right side
    21,928,921.59x = 367,368,269,174,741.44
  5. Step 5: Solve for x
    x = 367,368,269,174,741.44/21,928,921.59
  6. Step 6: Final answer
    x = 16,752,682.87

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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.