Home / 82,422,458.40-123,534,154.80-42,012,141.60

Finding the Fourth Proportional to 82,422,458.40, 123,534,154.80 and 42,012,141.60

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Solution

The fourth proportional to 82,422,458.40, 123,534,154.80 and 42,012,141.60 is: 62,967,478.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,422,458.40 : 123,534,154.80 = 42,012,141.60 : x
  2. Step 2: Convert to fraction form
    82,422,458.40/123,534,154.80 = 42,012,141.60/x
  3. Step 3: Cross multiply
    82,422,458.40x = 123,534,154.80 × 42,012,141.60
  4. Step 4: Simplify right side
    82,422,458.40x = 5,189,934,403,893,920
  5. Step 5: Solve for x
    x = 5,189,934,403,893,920/82,422,458.40
  6. Step 6: Final answer
    x = 62,967,478.82

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