Home / 5,175,859.28-7,142,753.16-2,971,078.16

Finding the Fourth Proportional to 5,175,859.28, 7,142,753.16 and 2,971,078.16

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Solution

The fourth proportional to 5,175,859.28, 7,142,753.16 and 2,971,078.16 is: 4,100,126.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,175,859.28 : 7,142,753.16 = 2,971,078.16 : x
  2. Step 2: Convert to fraction form
    5,175,859.28/7,142,753.16 = 2,971,078.16/x
  3. Step 3: Cross multiply
    5,175,859.28x = 7,142,753.16 × 2,971,078.16
  4. Step 4: Simplify right side
    5,175,859.28x = 21,221,677,915,946.99
  5. Step 5: Solve for x
    x = 21,221,677,915,946.99/5,175,859.28
  6. Step 6: Final answer
    x = 4,100,126.52

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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.