Home / 139,523,619.64-192,541,202.94-77,642,898.52

Finding the Fourth Proportional to 139,523,619.64, 192,541,202.94 and 77,642,898.52

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Solution

The fourth proportional to 139,523,619.64, 192,541,202.94 and 77,642,898.52 is: 107,146,425.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,523,619.64 : 192,541,202.94 = 77,642,898.52 : x
  2. Step 2: Convert to fraction form
    139,523,619.64/192,541,202.94 = 77,642,898.52/x
  3. Step 3: Cross multiply
    139,523,619.64x = 192,541,202.94 × 77,642,898.52
  4. Step 4: Simplify right side
    139,523,619.64x = 14,949,457,080,789,144
  5. Step 5: Solve for x
    x = 14,949,457,080,789,144/139,523,619.64
  6. Step 6: Final answer
    x = 107,146,425.24

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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.