Home / 20,511,483.39-30,755,866.98-8,389,459.29

Finding the Fourth Proportional to 20,511,483.39, 30,755,866.98 and 8,389,459.29

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Solution

The fourth proportional to 20,511,483.39, 30,755,866.98 and 8,389,459.29 is: 12,579,543.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,511,483.39 : 30,755,866.98 = 8,389,459.29 : x
  2. Step 2: Convert to fraction form
    20,511,483.39/30,755,866.98 = 8,389,459.29/x
  3. Step 3: Cross multiply
    20,511,483.39x = 30,755,866.98 × 8,389,459.29
  4. Step 4: Simplify right side
    20,511,483.39x = 258,025,093,883,970
  5. Step 5: Solve for x
    x = 258,025,093,883,970/20,511,483.39
  6. Step 6: Final answer
    x = 12,579,543.32

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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.