Home / 71,955,987.40-99,299,262.64-38,916,236.54

Finding the Fourth Proportional to 71,955,987.40, 99,299,262.64 and 38,916,236.54

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Solution

The fourth proportional to 71,955,987.40, 99,299,262.64 and 38,916,236.54 is: 53,704,406.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,955,987.40 : 99,299,262.64 = 38,916,236.54 : x
  2. Step 2: Convert to fraction form
    71,955,987.40/99,299,262.64 = 38,916,236.54/x
  3. Step 3: Cross multiply
    71,955,987.40x = 99,299,262.64 × 38,916,236.54
  4. Step 4: Simplify right side
    71,955,987.40x = 3,864,353,593,145,825
  5. Step 5: Solve for x
    x = 3,864,353,593,145,825/71,955,987.40
  6. Step 6: Final answer
    x = 53,704,406.44

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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.