Home / 81,586,543.80-122,344,386.30-26,978,028.60

Finding the Fourth Proportional to 81,586,543.80, 122,344,386.30 and 26,978,028.60

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Solution

The fourth proportional to 81,586,543.80, 122,344,386.30 and 26,978,028.60 is: 40,455,327.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,586,543.80 : 122,344,386.30 = 26,978,028.60 : x
  2. Step 2: Convert to fraction form
    81,586,543.80/122,344,386.30 = 26,978,028.60/x
  3. Step 3: Cross multiply
    81,586,543.80x = 122,344,386.30 × 26,978,028.60
  4. Step 4: Simplify right side
    81,586,543.80x = 3,300,610,352,650,848.50
  5. Step 5: Solve for x
    x = 3,300,610,352,650,848.50/81,586,543.80
  6. Step 6: Final answer
    x = 40,455,327.54

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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.