Home / 2,578,189,701.24-3,868,039,196.82-831,357,305.64

Finding the Fourth Proportional to 2,578,189,701.24, 3,868,039,196.82 and 831,357,305.64

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Solution

The fourth proportional to 2,578,189,701.24, 3,868,039,196.82 and 831,357,305.64 is: 1,247,279,299.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578,189,701.24 : 3,868,039,196.82 = 831,357,305.64 : x
  2. Step 2: Convert to fraction form
    2,578,189,701.24/3,868,039,196.82 = 831,357,305.64/x
  3. Step 3: Cross multiply
    2,578,189,701.24x = 3,868,039,196.82 × 831,357,305.64
  4. Step 4: Simplify right side
    2,578,189,701.24x = 3,215,722,644,778,184,704
  5. Step 5: Solve for x
    x = 3,215,722,644,778,184,704/2,578,189,701.24
  6. Step 6: Final answer
    x = 1,247,279,299.59

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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.