Home / 7,153,123.57-9,871,380.50-3,890,008.40

Finding the Fourth Proportional to 7,153,123.57, 9,871,380.50 and 3,890,008.40

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Solution

The fourth proportional to 7,153,123.57, 9,871,380.50 and 3,890,008.40 is: 5,368,249.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,153,123.57 : 9,871,380.50 = 3,890,008.40 : x
  2. Step 2: Convert to fraction form
    7,153,123.57/9,871,380.50 = 3,890,008.40/x
  3. Step 3: Cross multiply
    7,153,123.57x = 9,871,380.50 × 3,890,008.40
  4. Step 4: Simplify right side
    7,153,123.57x = 38,399,752,995,789.25
  5. Step 5: Solve for x
    x = 38,399,752,995,789.25/7,153,123.57
  6. Step 6: Final answer
    x = 5,368,249.64

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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.