Home / 77,704,568-107,229,487.32-42,896,509.28

Finding the Fourth Proportional to 77,704,568, 107,229,487.32 and 42,896,509.28

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Solution

The fourth proportional to 77,704,568, 107,229,487.32 and 42,896,509.28 is: 59,195,627.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,704,568 : 107,229,487.32 = 42,896,509.28 : x
  2. Step 2: Convert to fraction form
    77,704,568/107,229,487.32 = 42,896,509.28/x
  3. Step 3: Cross multiply
    77,704,568x = 107,229,487.32 × 42,896,509.28
  4. Step 4: Simplify right side
    77,704,568x = 4,599,770,697,912,022
  5. Step 5: Solve for x
    x = 4,599,770,697,912,022/77,704,568
  6. Step 6: Final answer
    x = 59,195,627.96

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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.