Home / 81,008,020.37-111,791,350.38-43,838,291.36

Finding the Fourth Proportional to 81,008,020.37, 111,791,350.38 and 43,838,291.36

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Solution

The fourth proportional to 81,008,020.37, 111,791,350.38 and 43,838,291.36 is: 60,496,994.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,008,020.37 : 111,791,350.38 = 43,838,291.36 : x
  2. Step 2: Convert to fraction form
    81,008,020.37/111,791,350.38 = 43,838,291.36/x
  3. Step 3: Cross multiply
    81,008,020.37x = 111,791,350.38 × 43,838,291.36
  4. Step 4: Simplify right side
    81,008,020.37x = 4,900,741,788,927,329
  5. Step 5: Solve for x
    x = 4,900,741,788,927,329/81,008,020.37
  6. Step 6: Final answer
    x = 60,496,994.83

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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.