Home / 78,180,998.94-107,889,736.71-42,899,035.71

Finding the Fourth Proportional to 78,180,998.94, 107,889,736.71 and 42,899,035.71

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Solution

The fourth proportional to 78,180,998.94, 107,889,736.71 and 42,899,035.71 is: 59,200,646.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,180,998.94 : 107,889,736.71 = 42,899,035.71 : x
  2. Step 2: Convert to fraction form
    78,180,998.94/107,889,736.71 = 42,899,035.71/x
  3. Step 3: Cross multiply
    78,180,998.94x = 107,889,736.71 × 42,899,035.71
  4. Step 4: Simplify right side
    78,180,998.94x = 4,628,365,667,864,788
  5. Step 5: Solve for x
    x = 4,628,365,667,864,788/78,180,998.94
  6. Step 6: Final answer
    x = 59,200,646.33

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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.