Home / 77,968,737-107,356,513.05-69,251,770.53

Finding the Fourth Proportional to 77,968,737, 107,356,513.05 and 69,251,770.53

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Solution

The fourth proportional to 77,968,737, 107,356,513.05 and 69,251,770.53 is: 95,353,969.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,968,737 : 107,356,513.05 = 69,251,770.53 : x
  2. Step 2: Convert to fraction form
    77,968,737/107,356,513.05 = 69,251,770.53/x
  3. Step 3: Cross multiply
    77,968,737x = 107,356,513.05 × 69,251,770.53
  4. Step 4: Simplify right side
    77,968,737x = 7,434,628,606,639,550
  5. Step 5: Solve for x
    x = 7,434,628,606,639,550/77,968,737
  6. Step 6: Final answer
    x = 95,353,969.97

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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.