Home / 28,160,680.05-42,258,790.17-11,986,605.36

Finding the Fourth Proportional to 28,160,680.05, 42,258,790.17 and 11,986,605.36

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Solution

The fourth proportional to 28,160,680.05, 42,258,790.17 and 11,986,605.36 is: 17,987,471.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,160,680.05 : 42,258,790.17 = 11,986,605.36 : x
  2. Step 2: Convert to fraction form
    28,160,680.05/42,258,790.17 = 11,986,605.36/x
  3. Step 3: Cross multiply
    28,160,680.05x = 42,258,790.17 × 11,986,605.36
  4. Step 4: Simplify right side
    28,160,680.05x = 506,539,440,758,837.31
  5. Step 5: Solve for x
    x = 506,539,440,758,837.31/28,160,680.05
  6. Step 6: Final answer
    x = 17,987,471.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.