Home / 78,941,477.72-108,933,708.96-45,899,382.68

Finding the Fourth Proportional to 78,941,477.72, 108,933,708.96 and 45,899,382.68

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Solution

The fourth proportional to 78,941,477.72, 108,933,708.96 and 45,899,382.68 is: 63,337,932.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,941,477.72 : 108,933,708.96 = 45,899,382.68 : x
  2. Step 2: Convert to fraction form
    78,941,477.72/108,933,708.96 = 45,899,382.68/x
  3. Step 3: Cross multiply
    78,941,477.72x = 108,933,708.96 × 45,899,382.68
  4. Step 4: Simplify right side
    78,941,477.72x = 4,999,989,993,762,116
  5. Step 5: Solve for x
    x = 4,999,989,993,762,116/78,941,477.72
  6. Step 6: Final answer
    x = 63,337,932.58

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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.