Home / 13,636,296.72-20,449,129.32-5,111,982

Finding the Fourth Proportional to 13,636,296.72, 20,449,129.32 and 5,111,982

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Solution

The fourth proportional to 13,636,296.72, 20,449,129.32 and 5,111,982 is: 7,665,980.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,636,296.72 : 20,449,129.32 = 5,111,982 : x
  2. Step 2: Convert to fraction form
    13,636,296.72/20,449,129.32 = 5,111,982/x
  3. Step 3: Cross multiply
    13,636,296.72x = 20,449,129.32 × 5,111,982
  4. Step 4: Simplify right side
    13,636,296.72x = 104,535,580,999,512.23
  5. Step 5: Solve for x
    x = 104,535,580,999,512.23/13,636,296.72
  6. Step 6: Final answer
    x = 7,665,980.23

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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.