Home / 2,147,970.38-2,963,461.49-1,331,880.40

Finding the Fourth Proportional to 2,147,970.38, 2,963,461.49 and 1,331,880.40

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Solution

The fourth proportional to 2,147,970.38, 2,963,461.49 and 1,331,880.40 is: 1,837,537.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,147,970.38 : 2,963,461.49 = 1,331,880.40 : x
  2. Step 2: Convert to fraction form
    2,147,970.38/2,963,461.49 = 1,331,880.40/x
  3. Step 3: Cross multiply
    2,147,970.38x = 2,963,461.49 × 1,331,880.40
  4. Step 4: Simplify right side
    2,147,970.38x = 3,946,976,259,868.49
  5. Step 5: Solve for x
    x = 3,946,976,259,868.49/2,147,970.38
  6. Step 6: Final answer
    x = 1,837,537.56

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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.