Home / 15,631,133.93-21,571,091.47-8,661,927.89

Finding the Fourth Proportional to 15,631,133.93, 21,571,091.47 and 8,661,927.89

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Solution

The fourth proportional to 15,631,133.93, 21,571,091.47 and 8,661,927.89 is: 11,953,530.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,631,133.93 : 21,571,091.47 = 8,661,927.89 : x
  2. Step 2: Convert to fraction form
    15,631,133.93/21,571,091.47 = 8,661,927.89/x
  3. Step 3: Cross multiply
    15,631,133.93x = 21,571,091.47 × 8,661,927.89
  4. Step 4: Simplify right side
    15,631,133.93x = 186,847,238,821,734.09
  5. Step 5: Solve for x
    x = 186,847,238,821,734.09/15,631,133.93
  6. Step 6: Final answer
    x = 11,953,530.67

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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.