Home / 78,202,374.82-107,924,321.73-43,395,065.26

Finding the Fourth Proportional to 78,202,374.82, 107,924,321.73 and 43,395,065.26

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Solution

The fourth proportional to 78,202,374.82, 107,924,321.73 and 43,395,065.26 is: 59,887,989.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,202,374.82 : 107,924,321.73 = 43,395,065.26 : x
  2. Step 2: Convert to fraction form
    78,202,374.82/107,924,321.73 = 43,395,065.26/x
  3. Step 3: Cross multiply
    78,202,374.82x = 107,924,321.73 × 43,395,065.26
  4. Step 4: Simplify right side
    78,202,374.82x = 4,683,382,984,614,586
  5. Step 5: Solve for x
    x = 4,683,382,984,614,586/78,202,374.82
  6. Step 6: Final answer
    x = 59,887,989.28

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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.