Home / 139,727,040.87-192,824,633.06-77,005,397.21

Finding the Fourth Proportional to 139,727,040.87, 192,824,633.06 and 77,005,397.21

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Solution

The fourth proportional to 139,727,040.87, 192,824,633.06 and 77,005,397.21 is: 106,268,173.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,727,040.87 : 192,824,633.06 = 77,005,397.21 : x
  2. Step 2: Convert to fraction form
    139,727,040.87/192,824,633.06 = 77,005,397.21/x
  3. Step 3: Cross multiply
    139,727,040.87x = 192,824,633.06 × 77,005,397.21
  4. Step 4: Simplify right side
    139,727,040.87x = 14,848,537,459,308,648
  5. Step 5: Solve for x
    x = 14,848,537,459,308,648/139,727,040.87
  6. Step 6: Final answer
    x = 106,268,173.77

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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.