Home / 15,420,913.26-21,280,986.30-8,545,510.14

Finding the Fourth Proportional to 15,420,913.26, 21,280,986.30 and 8,545,510.14

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Solution

The fourth proportional to 15,420,913.26, 21,280,986.30 and 8,545,510.14 is: 11,792,873.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,420,913.26 : 21,280,986.30 = 8,545,510.14 : x
  2. Step 2: Convert to fraction form
    15,420,913.26/21,280,986.30 = 8,545,510.14/x
  3. Step 3: Cross multiply
    15,420,913.26x = 21,280,986.30 × 8,545,510.14
  4. Step 4: Simplify right side
    15,420,913.26x = 181,856,884,215,851.09
  5. Step 5: Solve for x
    x = 181,856,884,215,851.09/15,420,913.26
  6. Step 6: Final answer
    x = 11,792,873.82

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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.