Home / 28,299,421.71-39,052,828.17-15,740,391.51

Finding the Fourth Proportional to 28,299,421.71, 39,052,828.17 and 15,740,391.51

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Solution

The fourth proportional to 28,299,421.71, 39,052,828.17 and 15,740,391.51 is: 21,721,532.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,299,421.71 : 39,052,828.17 = 15,740,391.51 : x
  2. Step 2: Convert to fraction form
    28,299,421.71/39,052,828.17 = 15,740,391.51/x
  3. Step 3: Cross multiply
    28,299,421.71x = 39,052,828.17 × 15,740,391.51
  4. Step 4: Simplify right side
    28,299,421.71x = 614,706,804,968,556.88
  5. Step 5: Solve for x
    x = 614,706,804,968,556.88/28,299,421.71
  6. Step 6: Final answer
    x = 21,721,532.38

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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.