Home / 7,143,409.25-9,858,088.13-3,880,410.72

Finding the Fourth Proportional to 7,143,409.25, 9,858,088.13 and 3,880,410.72

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Solution

The fourth proportional to 7,143,409.25, 9,858,088.13 and 3,880,410.72 is: 5,355,066.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,143,409.25 : 9,858,088.13 = 3,880,410.72 : x
  2. Step 2: Convert to fraction form
    7,143,409.25/9,858,088.13 = 3,880,410.72/x
  3. Step 3: Cross multiply
    7,143,409.25x = 9,858,088.13 × 3,880,410.72
  4. Step 4: Simplify right side
    7,143,409.25x = 38,253,430,838,954.70
  5. Step 5: Solve for x
    x = 38,253,430,838,954.70/7,143,409.25
  6. Step 6: Final answer
    x = 5,355,066.40

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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.