Home / 3,991,313.07-5,508,009.99-2,155,770.45

Finding the Fourth Proportional to 3,991,313.07, 5,508,009.99 and 2,155,770.45

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Solution

The fourth proportional to 3,991,313.07, 5,508,009.99 and 2,155,770.45 is: 2,974,962.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991,313.07 : 5,508,009.99 = 2,155,770.45 : x
  2. Step 2: Convert to fraction form
    3,991,313.07/5,508,009.99 = 2,155,770.45/x
  3. Step 3: Cross multiply
    3,991,313.07x = 5,508,009.99 × 2,155,770.45
  4. Step 4: Simplify right side
    3,991,313.07x = 11,874,005,174,746.80
  5. Step 5: Solve for x
    x = 11,874,005,174,746.80/3,991,313.07
  6. Step 6: Final answer
    x = 2,974,962.12

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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.