Home / 28,789,448.51-39,729,435.91-15,736,759.40

Finding the Fourth Proportional to 28,789,448.51, 39,729,435.91 and 15,736,759.40

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Solution

The fourth proportional to 28,789,448.51, 39,729,435.91 and 15,736,759.40 is: 21,716,726.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,789,448.51 : 39,729,435.91 = 15,736,759.40 : x
  2. Step 2: Convert to fraction form
    28,789,448.51/39,729,435.91 = 15,736,759.40/x
  3. Step 3: Cross multiply
    28,789,448.51x = 39,729,435.91 × 15,736,759.40
  4. Step 4: Simplify right side
    28,789,448.51x = 625,212,573,775,401
  5. Step 5: Solve for x
    x = 625,212,573,775,401/28,789,448.51
  6. Step 6: Final answer
    x = 21,716,726.31

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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.