Home / 20,130,662.59-27,781,100.76-11,429,644.75

Finding the Fourth Proportional to 20,130,662.59, 27,781,100.76 and 11,429,644.75

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Solution

The fourth proportional to 20,130,662.59, 27,781,100.76 and 11,429,644.75 is: 15,773,356.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,130,662.59 : 27,781,100.76 = 11,429,644.75 : x
  2. Step 2: Convert to fraction form
    20,130,662.59/27,781,100.76 = 11,429,644.75/x
  3. Step 3: Cross multiply
    20,130,662.59x = 27,781,100.76 × 11,429,644.75
  4. Step 4: Simplify right side
    20,130,662.59x = 317,528,112,450,755
  5. Step 5: Solve for x
    x = 317,528,112,450,755/20,130,662.59
  6. Step 6: Final answer
    x = 15,773,356.24

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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.