Home / 21,136,643.07-31,651,142.16-13,926,317.28

Finding the Fourth Proportional to 21,136,643.07, 31,651,142.16 and 13,926,317.28

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Solution

The fourth proportional to 21,136,643.07, 31,651,142.16 and 13,926,317.28 is: 20,854,013.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,136,643.07 : 31,651,142.16 = 13,926,317.28 : x
  2. Step 2: Convert to fraction form
    21,136,643.07/31,651,142.16 = 13,926,317.28/x
  3. Step 3: Cross multiply
    21,136,643.07x = 31,651,142.16 × 13,926,317.28
  4. Step 4: Simplify right side
    21,136,643.07x = 440,783,847,994,544.50
  5. Step 5: Solve for x
    x = 440,783,847,994,544.50/21,136,643.07
  6. Step 6: Final answer
    x = 20,854,013.88

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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.