Home / 20,489,980.33-28,276,743.23-11,323,213.57

Finding the Fourth Proportional to 20,489,980.33, 28,276,743.23 and 11,323,213.57

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Solution

The fourth proportional to 20,489,980.33, 28,276,743.23 and 11,323,213.57 is: 15,626,349.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,489,980.33 : 28,276,743.23 = 11,323,213.57 : x
  2. Step 2: Convert to fraction form
    20,489,980.33/28,276,743.23 = 11,323,213.57/x
  3. Step 3: Cross multiply
    20,489,980.33x = 28,276,743.23 × 11,323,213.57
  4. Step 4: Simplify right side
    20,489,980.33x = 320,183,602,657,341.62
  5. Step 5: Solve for x
    x = 320,183,602,657,341.62/20,489,980.33
  6. Step 6: Final answer
    x = 15,626,349.93

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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.