Home / 28,607,898.10-39,478,625.23-15,555,161.80

Finding the Fourth Proportional to 28,607,898.10, 39,478,625.23 and 15,555,161.80

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Solution

The fourth proportional to 28,607,898.10, 39,478,625.23 and 15,555,161.80 is: 21,465,974.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,607,898.10 : 39,478,625.23 = 15,555,161.80 : x
  2. Step 2: Convert to fraction form
    28,607,898.10/39,478,625.23 = 15,555,161.80/x
  3. Step 3: Cross multiply
    28,607,898.10x = 39,478,625.23 × 15,555,161.80
  4. Step 4: Simplify right side
    28,607,898.10x = 614,096,403,094,212.25
  5. Step 5: Solve for x
    x = 614,096,403,094,212.25/28,607,898.10
  6. Step 6: Final answer
    x = 21,465,974.22

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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.