Home / 15,286,101.78-21,096,036.06-8,760,338.40

Finding the Fourth Proportional to 15,286,101.78, 21,096,036.06 and 8,760,338.40

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Solution

The fourth proportional to 15,286,101.78, 21,096,036.06 and 8,760,338.40 is: 12,089,963.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,286,101.78 : 21,096,036.06 = 8,760,338.40 : x
  2. Step 2: Convert to fraction form
    15,286,101.78/21,096,036.06 = 8,760,338.40/x
  3. Step 3: Cross multiply
    15,286,101.78x = 21,096,036.06 × 8,760,338.40
  4. Step 4: Simplify right side
    15,286,101.78x = 184,808,414,784,202.69
  5. Step 5: Solve for x
    x = 184,808,414,784,202.69/15,286,101.78
  6. Step 6: Final answer
    x = 12,089,963.64

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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.