Home / 78,521,227.40-108,357,181.86-43,713,917.12

Finding the Fourth Proportional to 78,521,227.40, 108,357,181.86 and 43,713,917.12

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Solution

The fourth proportional to 78,521,227.40, 108,357,181.86 and 43,713,917.12 is: 60,324,029.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,521,227.40 : 108,357,181.86 = 43,713,917.12 : x
  2. Step 2: Convert to fraction form
    78,521,227.40/108,357,181.86 = 43,713,917.12/x
  3. Step 3: Cross multiply
    78,521,227.40x = 108,357,181.86 × 43,713,917.12
  4. Step 4: Simplify right side
    78,521,227.40x = 4,736,716,867,184,807
  5. Step 5: Solve for x
    x = 4,736,716,867,184,807/78,521,227.40
  6. Step 6: Final answer
    x = 60,324,029.87

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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.