Home / 15,703,367.72-21,687,168.69-13,991,570.01

Finding the Fourth Proportional to 15,703,367.72, 21,687,168.69 and 13,991,570.01

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Solution

The fourth proportional to 15,703,367.72, 21,687,168.69 and 13,991,570.01 is: 19,323,086.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,703,367.72 : 21,687,168.69 = 13,991,570.01 : x
  2. Step 2: Convert to fraction form
    15,703,367.72/21,687,168.69 = 13,991,570.01/x
  3. Step 3: Cross multiply
    15,703,367.72x = 21,687,168.69 × 13,991,570.01
  4. Step 4: Simplify right side
    15,703,367.72x = 303,437,539,044,815
  5. Step 5: Solve for x
    x = 303,437,539,044,815/15,703,367.72
  6. Step 6: Final answer
    x = 19,323,086.90

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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.