Home / 7,153,043.21-9,871,269.68-3,889,928.44

Finding the Fourth Proportional to 7,153,043.21, 9,871,269.68 and 3,889,928.44

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Solution

The fourth proportional to 7,153,043.21, 9,871,269.68 and 3,889,928.44 is: 5,368,139.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,153,043.21 : 9,871,269.68 = 3,889,928.44 : x
  2. Step 2: Convert to fraction form
    7,153,043.21/9,871,269.68 = 3,889,928.44/x
  3. Step 3: Cross multiply
    7,153,043.21x = 9,871,269.68 × 3,889,928.44
  4. Step 4: Simplify right side
    7,153,043.21x = 38,398,532,667,324.77
  5. Step 5: Solve for x
    x = 38,398,532,667,324.77/7,153,043.21
  6. Step 6: Final answer
    x = 5,368,139.34

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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.