Home / 81,686,005.74-112,726,690.26-45,016,576.74

Finding the Fourth Proportional to 81,686,005.74, 112,726,690.26 and 45,016,576.74

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Solution

The fourth proportional to 81,686,005.74, 112,726,690.26 and 45,016,576.74 is: 62,122,877.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,686,005.74 : 112,726,690.26 = 45,016,576.74 : x
  2. Step 2: Convert to fraction form
    81,686,005.74/112,726,690.26 = 45,016,576.74/x
  3. Step 3: Cross multiply
    81,686,005.74x = 112,726,690.26 × 45,016,576.74
  4. Step 4: Simplify right side
    81,686,005.74x = 5,074,569,702,735,501
  5. Step 5: Solve for x
    x = 5,074,569,702,735,501/81,686,005.74
  6. Step 6: Final answer
    x = 62,122,877.19

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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.