Home / 81,859,029.22-112,965,821.13-45,189,901.54

Finding the Fourth Proportional to 81,859,029.22, 112,965,821.13 and 45,189,901.54

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Solution

The fourth proportional to 81,859,029.22, 112,965,821.13 and 45,189,901.54 is: 62,362,263.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,859,029.22 : 112,965,821.13 = 45,189,901.54 : x
  2. Step 2: Convert to fraction form
    81,859,029.22/112,965,821.13 = 45,189,901.54/x
  3. Step 3: Cross multiply
    81,859,029.22x = 112,965,821.13 × 45,189,901.54
  4. Step 4: Simplify right side
    81,859,029.22x = 5,104,914,334,249,951
  5. Step 5: Solve for x
    x = 5,104,914,334,249,951/81,859,029.22
  6. Step 6: Final answer
    x = 62,362,263.31

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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.