Home / 21,001,765-31,507,961.91-5,855,696.50

Finding the Fourth Proportional to 21,001,765, 31,507,961.91 and 5,855,696.50

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Solution

The fourth proportional to 21,001,765, 31,507,961.91 and 5,855,696.50 is: 8,785,026.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,001,765 : 31,507,961.91 = 5,855,696.50 : x
  2. Step 2: Convert to fraction form
    21,001,765/31,507,961.91 = 5,855,696.50/x
  3. Step 3: Cross multiply
    21,001,765x = 31,507,961.91 × 5,855,696.50
  4. Step 4: Simplify right side
    21,001,765x = 184,501,062,278,520.31
  5. Step 5: Solve for x
    x = 184,501,062,278,520.31/21,001,765
  6. Step 6: Final answer
    x = 8,785,026.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.