Home / 156,082,015.41-215,377,483.59-86,454,387.06

Finding the Fourth Proportional to 156,082,015.41, 215,377,483.59 and 86,454,387.06

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Solution

The fourth proportional to 156,082,015.41, 215,377,483.59 and 86,454,387.06 is: 119,298,359.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,082,015.41 : 215,377,483.59 = 86,454,387.06 : x
  2. Step 2: Convert to fraction form
    156,082,015.41/215,377,483.59 = 86,454,387.06/x
  3. Step 3: Cross multiply
    156,082,015.41x = 215,377,483.59 × 86,454,387.06
  4. Step 4: Simplify right side
    156,082,015.41x = 18,620,328,330,298,660
  5. Step 5: Solve for x
    x = 18,620,328,330,298,660/156,082,015.41
  6. Step 6: Final answer
    x = 119,298,359.14

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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.