Home / 102,831,518.80-141,907,765.44-55,788,589.90

Finding the Fourth Proportional to 102,831,518.80, 141,907,765.44 and 55,788,589.90

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Solution

The fourth proportional to 102,831,518.80, 141,907,765.44 and 55,788,589.90 is: 76,988,400.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,831,518.80 : 141,907,765.44 = 55,788,589.90 : x
  2. Step 2: Convert to fraction form
    102,831,518.80/141,907,765.44 = 55,788,589.90/x
  3. Step 3: Cross multiply
    102,831,518.80x = 141,907,765.44 × 55,788,589.90
  4. Step 4: Simplify right side
    102,831,518.80x = 7,916,834,129,757,553
  5. Step 5: Solve for x
    x = 7,916,834,129,757,553/102,831,518.80
  6. Step 6: Final answer
    x = 76,988,400.27

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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.