Home / 156,082,021.92-215,377,492.56-86,454,393.56

Finding the Fourth Proportional to 156,082,021.92, 215,377,492.56 and 86,454,393.56

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Solution

The fourth proportional to 156,082,021.92, 215,377,492.56 and 86,454,393.56 is: 119,298,368.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,082,021.92 : 215,377,492.56 = 86,454,393.56 : x
  2. Step 2: Convert to fraction form
    156,082,021.92/215,377,492.56 = 86,454,393.56/x
  3. Step 3: Cross multiply
    156,082,021.92x = 215,377,492.56 × 86,454,393.56
  4. Step 4: Simplify right side
    156,082,021.92x = 18,620,330,505,748,212
  5. Step 5: Solve for x
    x = 18,620,330,505,748,212/156,082,021.92
  6. Step 6: Final answer
    x = 119,298,368.11

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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.