Home / 20,564,971.21-28,363,112.48-18,078,876.26

Finding the Fourth Proportional to 20,564,971.21, 28,363,112.48 and 18,078,876.26

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Solution

The fourth proportional to 20,564,971.21, 28,363,112.48 and 18,078,876.26 is: 24,934,301.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,564,971.21 : 28,363,112.48 = 18,078,876.26 : x
  2. Step 2: Convert to fraction form
    20,564,971.21/28,363,112.48 = 18,078,876.26/x
  3. Step 3: Cross multiply
    20,564,971.21x = 28,363,112.48 × 18,078,876.26
  4. Step 4: Simplify right side
    20,564,971.21x = 512,773,200,874,381.75
  5. Step 5: Solve for x
    x = 512,773,200,874,381.75/20,564,971.21
  6. Step 6: Final answer
    x = 24,934,301.91

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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.