Home / 85,867,198.32-128,711,194.92-34,784,477.04

Finding the Fourth Proportional to 85,867,198.32, 128,711,194.92 and 34,784,477.04

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Solution

The fourth proportional to 85,867,198.32, 128,711,194.92 and 34,784,477.04 is: 52,140,417.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,867,198.32 : 128,711,194.92 = 34,784,477.04 : x
  2. Step 2: Convert to fraction form
    85,867,198.32/128,711,194.92 = 34,784,477.04/x
  3. Step 3: Cross multiply
    85,867,198.32x = 128,711,194.92 × 34,784,477.04
  4. Step 4: Simplify right side
    85,867,198.32x = 4,477,151,604,485,704.50
  5. Step 5: Solve for x
    x = 4,477,151,604,485,704.50/85,867,198.32
  6. Step 6: Final answer
    x = 52,140,417.90

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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.