Home / 12,969,231.81-17,898,466.56-7,167,889.02

Finding the Fourth Proportional to 12,969,231.81, 17,898,466.56 and 7,167,889.02

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Solution

The fourth proportional to 12,969,231.81, 17,898,466.56 and 7,167,889.02 is: 9,892,199.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,969,231.81 : 17,898,466.56 = 7,167,889.02 : x
  2. Step 2: Convert to fraction form
    12,969,231.81/17,898,466.56 = 7,167,889.02/x
  3. Step 3: Cross multiply
    12,969,231.81x = 17,898,466.56 × 7,167,889.02
  4. Step 4: Simplify right side
    12,969,231.81x = 128,294,221,930,261.16
  5. Step 5: Solve for x
    x = 128,294,221,930,261.16/12,969,231.81
  6. Step 6: Final answer
    x = 9,892,199.00

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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.