Home / 81,012,518.82-111,797,973.05-46,206,971.51

Finding the Fourth Proportional to 81,012,518.82, 111,797,973.05 and 46,206,971.51

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Solution

The fourth proportional to 81,012,518.82, 111,797,973.05 and 46,206,971.51 is: 63,766,018.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,012,518.82 : 111,797,973.05 = 46,206,971.51 : x
  2. Step 2: Convert to fraction form
    81,012,518.82/111,797,973.05 = 46,206,971.51/x
  3. Step 3: Cross multiply
    81,012,518.82x = 111,797,973.05 × 46,206,971.51
  4. Step 4: Simplify right side
    81,012,518.82x = 5,165,845,754,807,073
  5. Step 5: Solve for x
    x = 5,165,845,754,807,073/81,012,518.82
  6. Step 6: Final answer
    x = 63,766,018.27

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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.