Home / 19,680,102.28-27,158,580.48-10,978,048.72

Finding the Fourth Proportional to 19,680,102.28, 27,158,580.48 and 10,978,048.72

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Solution

The fourth proportional to 19,680,102.28, 27,158,580.48 and 10,978,048.72 is: 15,149,729.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,680,102.28 : 27,158,580.48 = 10,978,048.72 : x
  2. Step 2: Convert to fraction form
    19,680,102.28/27,158,580.48 = 10,978,048.72/x
  3. Step 3: Cross multiply
    19,680,102.28x = 27,158,580.48 × 10,978,048.72
  4. Step 4: Simplify right side
    19,680,102.28x = 298,148,219,675,481
  5. Step 5: Solve for x
    x = 298,148,219,675,481/19,680,102.28
  6. Step 6: Final answer
    x = 15,149,729.17

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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.