Home / 40,087,419.86-55,320,791.12-21,752,705.36

Finding the Fourth Proportional to 40,087,419.86, 55,320,791.12 and 21,752,705.36

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Solution

The fourth proportional to 40,087,419.86, 55,320,791.12 and 21,752,705.36 is: 30,018,815.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,087,419.86 : 55,320,791.12 = 21,752,705.36 : x
  2. Step 2: Convert to fraction form
    40,087,419.86/55,320,791.12 = 21,752,705.36/x
  3. Step 3: Cross multiply
    40,087,419.86x = 55,320,791.12 × 21,752,705.36
  4. Step 4: Simplify right side
    40,087,419.86x = 1,203,376,869,130,097
  5. Step 5: Solve for x
    x = 1,203,376,869,130,097/40,087,419.86
  6. Step 6: Final answer
    x = 30,018,815.72

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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.