Home / 7,143,418.34-9,858,100.66-3,880,419.81

Finding the Fourth Proportional to 7,143,418.34, 9,858,100.66 and 3,880,419.81

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Solution

The fourth proportional to 7,143,418.34, 9,858,100.66 and 3,880,419.81 is: 5,355,078.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,143,418.34 : 9,858,100.66 = 3,880,419.81 : x
  2. Step 2: Convert to fraction form
    7,143,418.34/9,858,100.66 = 3,880,419.81/x
  3. Step 3: Cross multiply
    7,143,418.34x = 9,858,100.66 × 3,880,419.81
  4. Step 4: Simplify right side
    7,143,418.34x = 38,253,569,090,038.08
  5. Step 5: Solve for x
    x = 38,253,569,090,038.08/7,143,418.34
  6. Step 6: Final answer
    x = 5,355,078.94

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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.