Home / 139,163,139.77-192,039,871.61-77,287,464.14

Finding the Fourth Proportional to 139,163,139.77, 192,039,871.61 and 77,287,464.14

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Solution

The fourth proportional to 139,163,139.77, 192,039,871.61 and 77,287,464.14 is: 106,653,778.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,163,139.77 : 192,039,871.61 = 77,287,464.14 : x
  2. Step 2: Convert to fraction form
    139,163,139.77/192,039,871.61 = 77,287,464.14/x
  3. Step 3: Cross multiply
    139,163,139.77x = 192,039,871.61 × 77,287,464.14
  4. Step 4: Simplify right side
    139,163,139.77x = 14,842,274,691,181,398
  5. Step 5: Solve for x
    x = 14,842,274,691,181,398/139,163,139.77
  6. Step 6: Final answer
    x = 106,653,778.55

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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.