Home / 81,584,829.20-122,093,808.60-74,782,384.40

Finding the Fourth Proportional to 81,584,829.20, 122,093,808.60 and 74,782,384.40

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Solution

The fourth proportional to 81,584,829.20, 122,093,808.60 and 74,782,384.40 is: 111,913,773.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,584,829.20 : 122,093,808.60 = 74,782,384.40 : x
  2. Step 2: Convert to fraction form
    81,584,829.20/122,093,808.60 = 74,782,384.40/x
  3. Step 3: Cross multiply
    81,584,829.20x = 122,093,808.60 × 74,782,384.40
  4. Step 4: Simplify right side
    81,584,829.20x = 9,130,466,127,585,226
  5. Step 5: Solve for x
    x = 9,130,466,127,585,226/81,584,829.20
  6. Step 6: Final answer
    x = 111,913,773.89

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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.