Home / 78,272,077.82-117,388,714.80-26,455,529.39

Finding the Fourth Proportional to 78,272,077.82, 117,388,714.80 and 26,455,529.39

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Solution

The fourth proportional to 78,272,077.82, 117,388,714.80 and 26,455,529.39 is: 39,676,736.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,272,077.82 : 117,388,714.80 = 26,455,529.39 : x
  2. Step 2: Convert to fraction form
    78,272,077.82/117,388,714.80 = 26,455,529.39/x
  3. Step 3: Cross multiply
    78,272,077.82x = 117,388,714.80 × 26,455,529.39
  4. Step 4: Simplify right side
    78,272,077.82x = 3,105,580,594,445,728
  5. Step 5: Solve for x
    x = 3,105,580,594,445,728/78,272,077.82
  6. Step 6: Final answer
    x = 39,676,736.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.