Home / 3,991,314.07-5,508,011.37-2,155,771.45

Finding the Fourth Proportional to 3,991,314.07, 5,508,011.37 and 2,155,771.45

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Solution

The fourth proportional to 3,991,314.07, 5,508,011.37 and 2,155,771.45 is: 2,974,963.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991,314.07 : 5,508,011.37 = 2,155,771.45 : x
  2. Step 2: Convert to fraction form
    3,991,314.07/5,508,011.37 = 2,155,771.45/x
  3. Step 3: Cross multiply
    3,991,314.07x = 5,508,011.37 × 2,155,771.45
  4. Step 4: Simplify right side
    3,991,314.07x = 11,874,013,657,721.39
  5. Step 5: Solve for x
    x = 11,874,013,657,721.39/3,991,314.07
  6. Step 6: Final answer
    x = 2,974,963.50

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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.