Home / 12,999,194.23-17,938,668.28-7,197,851.11

Finding the Fourth Proportional to 12,999,194.23, 17,938,668.28 and 7,197,851.11

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Solution

The fourth proportional to 12,999,194.23, 17,938,668.28 and 7,197,851.11 is: 9,932,912.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,999,194.23 : 17,938,668.28 = 7,197,851.11 : x
  2. Step 2: Convert to fraction form
    12,999,194.23/17,938,668.28 = 7,197,851.11/x
  3. Step 3: Cross multiply
    12,999,194.23x = 17,938,668.28 × 7,197,851.11
  4. Step 4: Simplify right side
    12,999,194.23x = 129,119,863,391,119.81
  5. Step 5: Solve for x
    x = 129,119,863,391,119.81/12,999,194.23
  6. Step 6: Final answer
    x = 9,932,912.85

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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.