Home / 139,163,157.16-192,039,895.60-77,287,481.56

Finding the Fourth Proportional to 139,163,157.16, 192,039,895.60 and 77,287,481.56

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Solution

The fourth proportional to 139,163,157.16, 192,039,895.60 and 77,287,481.56 is: 106,653,802.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,163,157.16 : 192,039,895.60 = 77,287,481.56 : x
  2. Step 2: Convert to fraction form
    139,163,157.16/192,039,895.60 = 77,287,481.56/x
  3. Step 3: Cross multiply
    139,163,157.16x = 192,039,895.60 × 77,287,481.56
  4. Step 4: Simplify right side
    139,163,157.16x = 14,842,279,889,969,326
  5. Step 5: Solve for x
    x = 14,842,279,889,969,326/139,163,157.16
  6. Step 6: Final answer
    x = 106,653,802.58

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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.