Home / 78,756,297.64-108,676,599.42-49,378,239.16

Finding the Fourth Proportional to 78,756,297.64, 108,676,599.42 and 49,378,239.16

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Solution

The fourth proportional to 78,756,297.64, 108,676,599.42 and 49,378,239.16 is: 68,137,523.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,756,297.64 : 108,676,599.42 = 49,378,239.16 : x
  2. Step 2: Convert to fraction form
    78,756,297.64/108,676,599.42 = 49,378,239.16/x
  3. Step 3: Cross multiply
    78,756,297.64x = 108,676,599.42 × 49,378,239.16
  4. Step 4: Simplify right side
    78,756,297.64x = 5,366,259,117,256,277
  5. Step 5: Solve for x
    x = 5,366,259,117,256,277/78,756,297.64
  6. Step 6: Final answer
    x = 68,137,523.96

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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.