Home / 78,202,374.32-107,924,321.04-43,395,064.76

Finding the Fourth Proportional to 78,202,374.32, 107,924,321.04 and 43,395,064.76

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Solution

The fourth proportional to 78,202,374.32, 107,924,321.04 and 43,395,064.76 is: 59,887,988.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,202,374.32 : 107,924,321.04 = 43,395,064.76 : x
  2. Step 2: Convert to fraction form
    78,202,374.32/107,924,321.04 = 43,395,064.76/x
  3. Step 3: Cross multiply
    78,202,374.32x = 107,924,321.04 × 43,395,064.76
  4. Step 4: Simplify right side
    78,202,374.32x = 4,683,382,900,709,831
  5. Step 5: Solve for x
    x = 4,683,382,900,709,831/78,202,374.32
  6. Step 6: Final answer
    x = 59,887,988.59

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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.