Home / 81,648,010.60-122,472,015.90-73,570,107.40

Finding the Fourth Proportional to 81,648,010.60, 122,472,015.90 and 73,570,107.40

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Solution

The fourth proportional to 81,648,010.60, 122,472,015.90 and 73,570,107.40 is: 110,355,161.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,648,010.60 : 122,472,015.90 = 73,570,107.40 : x
  2. Step 2: Convert to fraction form
    81,648,010.60/122,472,015.90 = 73,570,107.40/x
  3. Step 3: Cross multiply
    81,648,010.60x = 122,472,015.90 × 73,570,107.40
  4. Step 4: Simplify right side
    81,648,010.60x = 9,010,279,363,257,508
  5. Step 5: Solve for x
    x = 9,010,279,363,257,508/81,648,010.60
  6. Step 6: Final answer
    x = 110,355,161.10

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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.