Home / 66,141,506.31-99,205,848.41-20,083,780.20

Finding the Fourth Proportional to 66,141,506.31, 99,205,848.41 and 20,083,780.20

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Solution

The fourth proportional to 66,141,506.31, 99,205,848.41 and 20,083,780.20 is: 30,123,723.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,141,506.31 : 99,205,848.41 = 20,083,780.20 : x
  2. Step 2: Convert to fraction form
    66,141,506.31/99,205,848.41 = 20,083,780.20/x
  3. Step 3: Cross multiply
    66,141,506.31x = 99,205,848.41 × 20,083,780.20
  4. Step 4: Simplify right side
    66,141,506.31x = 1,992,428,454,405,533.75
  5. Step 5: Solve for x
    x = 1,992,428,454,405,533.75/66,141,506.31
  6. Step 6: Final answer
    x = 30,123,723.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.