Home / 78,653,863.32-108,548,792.46-43,378,567.44

Finding the Fourth Proportional to 78,653,863.32, 108,548,792.46 and 43,378,567.44

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Solution

The fourth proportional to 78,653,863.32, 108,548,792.46 and 43,378,567.44 is: 59,865,986.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,653,863.32 : 108,548,792.46 = 43,378,567.44 : x
  2. Step 2: Convert to fraction form
    78,653,863.32/108,548,792.46 = 43,378,567.44/x
  3. Step 3: Cross multiply
    78,653,863.32x = 108,548,792.46 × 43,378,567.44
  4. Step 4: Simplify right side
    78,653,863.32x = 4,708,691,114,256,673
  5. Step 5: Solve for x
    x = 4,708,691,114,256,673/78,653,863.32
  6. Step 6: Final answer
    x = 59,865,986.43

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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.