Home / 139,519,359.21-192,535,187.76-76,794,116.12

Finding the Fourth Proportional to 139,519,359.21, 192,535,187.76 and 76,794,116.12

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Solution

The fourth proportional to 139,519,359.21, 192,535,187.76 and 76,794,116.12 is: 105,975,039.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,519,359.21 : 192,535,187.76 = 76,794,116.12 : x
  2. Step 2: Convert to fraction form
    139,519,359.21/192,535,187.76 = 76,794,116.12/x
  3. Step 3: Cross multiply
    139,519,359.21x = 192,535,187.76 × 76,794,116.12
  4. Step 4: Simplify right side
    139,519,359.21x = 14,785,569,565,064,764
  5. Step 5: Solve for x
    x = 14,785,569,565,064,764/139,519,359.21
  6. Step 6: Final answer
    x = 105,975,039.23

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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.