Home / 14,290,989.72-19,721,745.17-7,764,728.15

Finding the Fourth Proportional to 14,290,989.72, 19,721,745.17 and 7,764,728.15

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Solution

The fourth proportional to 14,290,989.72, 19,721,745.17 and 7,764,728.15 is: 10,715,422.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,290,989.72 : 19,721,745.17 = 7,764,728.15 : x
  2. Step 2: Convert to fraction form
    14,290,989.72/19,721,745.17 = 7,764,728.15/x
  3. Step 3: Cross multiply
    14,290,989.72x = 19,721,745.17 × 7,764,728.15
  4. Step 4: Simplify right side
    14,290,989.72x = 153,133,989,751,193.16
  5. Step 5: Solve for x
    x = 153,133,989,751,193.16/14,290,989.72
  6. Step 6: Final answer
    x = 10,715,422.29

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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.