Home / 101,015,067.60-139,390,390.56-74,567,491.92

Finding the Fourth Proportional to 101,015,067.60, 139,390,390.56 and 74,567,491.92

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Solution

The fourth proportional to 101,015,067.60, 139,390,390.56 and 74,567,491.92 is: 102,895,459.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,015,067.60 : 139,390,390.56 = 74,567,491.92 : x
  2. Step 2: Convert to fraction form
    101,015,067.60/139,390,390.56 = 74,567,491.92/x
  3. Step 3: Cross multiply
    101,015,067.60x = 139,390,390.56 × 74,567,491.92
  4. Step 4: Simplify right side
    101,015,067.60x = 10,393,991,821,808,444
  5. Step 5: Solve for x
    x = 10,393,991,821,808,444/101,015,067.60
  6. Step 6: Final answer
    x = 102,895,459.74

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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.