Home / 28,607,342.31-39,478,625.79-15,554,689.35

Finding the Fourth Proportional to 28,607,342.31, 39,478,625.79 and 15,554,689.35

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Solution

The fourth proportional to 28,607,342.31, 39,478,625.79 and 15,554,689.35 is: 21,465,739.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,607,342.31 : 39,478,625.79 = 15,554,689.35 : x
  2. Step 2: Convert to fraction form
    28,607,342.31/39,478,625.79 = 15,554,689.35/x
  3. Step 3: Cross multiply
    28,607,342.31x = 39,478,625.79 × 15,554,689.35
  4. Step 4: Simplify right side
    28,607,342.31x = 614,077,760,128,348.25
  5. Step 5: Solve for x
    x = 614,077,760,128,348.25/28,607,342.31
  6. Step 6: Final answer
    x = 21,465,739.58

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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.