Home / 156,025,181.25-215,315,469.41-86,409,102.69

Finding the Fourth Proportional to 156,025,181.25, 215,315,469.41 and 86,409,102.69

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Solution

The fourth proportional to 156,025,181.25, 215,315,469.41 and 86,409,102.69 is: 119,244,960.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,025,181.25 : 215,315,469.41 = 86,409,102.69 : x
  2. Step 2: Convert to fraction form
    156,025,181.25/215,315,469.41 = 86,409,102.69/x
  3. Step 3: Cross multiply
    156,025,181.25x = 215,315,469.41 × 86,409,102.69
  4. Step 4: Simplify right side
    156,025,181.25x = 18,605,216,506,562,196
  5. Step 5: Solve for x
    x = 18,605,216,506,562,196/156,025,181.25
  6. Step 6: Final answer
    x = 119,244,960.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.