Home / 7,143,406.63-9,858,084.50-3,880,408.10

Finding the Fourth Proportional to 7,143,406.63, 9,858,084.50 and 3,880,408.10

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Solution

The fourth proportional to 7,143,406.63, 9,858,084.50 and 3,880,408.10 is: 5,355,062.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,143,406.63 : 9,858,084.50 = 3,880,408.10 : x
  2. Step 2: Convert to fraction form
    7,143,406.63/9,858,084.50 = 3,880,408.10/x
  3. Step 3: Cross multiply
    7,143,406.63x = 9,858,084.50 × 3,880,408.10
  4. Step 4: Simplify right side
    7,143,406.63x = 38,253,390,904,695.05
  5. Step 5: Solve for x
    x = 38,253,390,904,695.05/7,143,406.63
  6. Step 6: Final answer
    x = 5,355,062.77

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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.