Home / 21,120,218.07-29,145,912.80-11,462,426.07

Finding the Fourth Proportional to 21,120,218.07, 29,145,912.80 and 11,462,426.07

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Solution

The fourth proportional to 21,120,218.07, 29,145,912.80 and 11,462,426.07 is: 15,818,154.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,120,218.07 : 29,145,912.80 = 11,462,426.07 : x
  2. Step 2: Convert to fraction form
    21,120,218.07/29,145,912.80 = 11,462,426.07/x
  3. Step 3: Cross multiply
    21,120,218.07x = 29,145,912.80 × 11,462,426.07
  4. Step 4: Simplify right side
    21,120,218.07x = 334,082,870,655,354.62
  5. Step 5: Solve for x
    x = 334,082,870,655,354.62/21,120,218.07
  6. Step 6: Final answer
    x = 15,818,154.41

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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.