Home / 139,538,330.64-192,562,896.96-77,673,283.92

Finding the Fourth Proportional to 139,538,330.64, 192,562,896.96 and 77,673,283.92

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Solution

The fourth proportional to 139,538,330.64, 192,562,896.96 and 77,673,283.92 is: 107,189,132.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,538,330.64 : 192,562,896.96 = 77,673,283.92 : x
  2. Step 2: Convert to fraction form
    139,538,330.64/192,562,896.96 = 77,673,283.92/x
  3. Step 3: Cross multiply
    139,538,330.64x = 192,562,896.96 × 77,673,283.92
  4. Step 4: Simplify right side
    139,538,330.64x = 14,956,992,568,031,786
  5. Step 5: Solve for x
    x = 14,956,992,568,031,786/139,538,330.64
  6. Step 6: Final answer
    x = 107,189,132.19

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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.