Home / 21,375,728.24-29,501,656.80-13,535,956.27

Finding the Fourth Proportional to 21,375,728.24, 29,501,656.80 and 13,535,956.27

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Solution

The fourth proportional to 21,375,728.24, 29,501,656.80 and 13,535,956.27 is: 18,681,615.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,375,728.24 : 29,501,656.80 = 13,535,956.27 : x
  2. Step 2: Convert to fraction form
    21,375,728.24/29,501,656.80 = 13,535,956.27/x
  3. Step 3: Cross multiply
    21,375,728.24x = 29,501,656.80 × 13,535,956.27
  4. Step 4: Simplify right side
    21,375,728.24x = 399,333,136,337,348.12
  5. Step 5: Solve for x
    x = 399,333,136,337,348.12/21,375,728.24
  6. Step 6: Final answer
    x = 18,681,615.52

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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.