Home / 82,051,544.20-122,928,017.10-66,823,025.80

Finding the Fourth Proportional to 82,051,544.20, 122,928,017.10 and 66,823,025.80

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Solution

The fourth proportional to 82,051,544.20, 122,928,017.10 and 66,823,025.80 is: 100,112,948.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,051,544.20 : 122,928,017.10 = 66,823,025.80 : x
  2. Step 2: Convert to fraction form
    82,051,544.20/122,928,017.10 = 66,823,025.80/x
  3. Step 3: Cross multiply
    82,051,544.20x = 122,928,017.10 × 66,823,025.80
  4. Step 4: Simplify right side
    82,051,544.20x = 8,214,422,058,216,140
  5. Step 5: Solve for x
    x = 8,214,422,058,216,140/82,051,544.20
  6. Step 6: Final answer
    x = 100,112,948.98

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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.