Home / 81,686,046.51-112,726,746.63-45,016,617.51

Finding the Fourth Proportional to 81,686,046.51, 112,726,746.63 and 45,016,617.51

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Solution

The fourth proportional to 81,686,046.51, 112,726,746.63 and 45,016,617.51 is: 62,122,933.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,686,046.51 : 112,726,746.63 = 45,016,617.51 : x
  2. Step 2: Convert to fraction form
    81,686,046.51/112,726,746.63 = 45,016,617.51/x
  3. Step 3: Cross multiply
    81,686,046.51x = 112,726,746.63 × 45,016,617.51
  4. Step 4: Simplify right side
    81,686,046.51x = 5,074,576,836,189,391
  5. Step 5: Solve for x
    x = 5,074,576,836,189,391/81,686,046.51
  6. Step 6: Final answer
    x = 62,122,933.51

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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.