Home / 15,413,851.78-21,271,108.05-9,218,898.38

Finding the Fourth Proportional to 15,413,851.78, 21,271,108.05 and 9,218,898.38

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Solution

The fourth proportional to 15,413,851.78, 21,271,108.05 and 9,218,898.38 is: 12,722,075.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,413,851.78 : 21,271,108.05 = 9,218,898.38 : x
  2. Step 2: Convert to fraction form
    15,413,851.78/21,271,108.05 = 9,218,898.38/x
  3. Step 3: Cross multiply
    15,413,851.78x = 21,271,108.05 × 9,218,898.38
  4. Step 4: Simplify right side
    15,413,851.78x = 196,096,183,596,127.75
  5. Step 5: Solve for x
    x = 196,096,183,596,127.75/15,413,851.78
  6. Step 6: Final answer
    x = 12,722,075.34

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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.