Home / 21,136,646.56-31,651,147.51-13,926,320.79

Finding the Fourth Proportional to 21,136,646.56, 31,651,147.51 and 13,926,320.79

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Solution

The fourth proportional to 21,136,646.56, 31,651,147.51 and 13,926,320.79 is: 20,854,019.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,136,646.56 : 31,651,147.51 = 13,926,320.79 : x
  2. Step 2: Convert to fraction form
    21,136,646.56/31,651,147.51 = 13,926,320.79/x
  3. Step 3: Cross multiply
    21,136,646.56x = 31,651,147.51 × 13,926,320.79
  4. Step 4: Simplify right side
    21,136,646.56x = 440,784,033,730,762.44
  5. Step 5: Solve for x
    x = 440,784,033,730,762.44/21,136,646.56
  6. Step 6: Final answer
    x = 20,854,019.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.