Home / 78,834,892.58-108,001,995.60-75,887,467.22

Finding the Fourth Proportional to 78,834,892.58, 108,001,995.60 and 75,887,467.22

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Solution

The fourth proportional to 78,834,892.58, 108,001,995.60 and 75,887,467.22 is: 103,964,090.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,834,892.58 : 108,001,995.60 = 75,887,467.22 : x
  2. Step 2: Convert to fraction form
    78,834,892.58/108,001,995.60 = 75,887,467.22/x
  3. Step 3: Cross multiply
    78,834,892.58x = 108,001,995.60 × 75,887,467.22
  4. Step 4: Simplify right side
    78,834,892.58x = 8,195,997,900,789,584
  5. Step 5: Solve for x
    x = 8,195,997,900,789,584/78,834,892.58
  6. Step 6: Final answer
    x = 103,964,090.42

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.