Home / 72,465,143.52-100,002,883.32-39,425,787.36

Finding the Fourth Proportional to 72,465,143.52, 100,002,883.32 and 39,425,787.36

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Solution

The fourth proportional to 72,465,143.52, 100,002,883.32 and 39,425,787.36 is: 54,408,122.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,465,143.52 : 100,002,883.32 = 39,425,787.36 : x
  2. Step 2: Convert to fraction form
    72,465,143.52/100,002,883.32 = 39,425,787.36/x
  3. Step 3: Cross multiply
    72,465,143.52x = 100,002,883.32 × 39,425,787.36
  4. Step 4: Simplify right side
    72,465,143.52x = 3,942,692,413,161,210.50
  5. Step 5: Solve for x
    x = 3,942,692,413,161,210.50/72,465,143.52
  6. Step 6: Final answer
    x = 54,408,122.60

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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.