Home / 139,727,041.87-192,824,634.44-77,005,398.21

Finding the Fourth Proportional to 139,727,041.87, 192,824,634.44 and 77,005,398.21

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Solution

The fourth proportional to 139,727,041.87, 192,824,634.44 and 77,005,398.21 is: 106,268,175.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,727,041.87 : 192,824,634.44 = 77,005,398.21 : x
  2. Step 2: Convert to fraction form
    139,727,041.87/192,824,634.44 = 77,005,398.21/x
  3. Step 3: Cross multiply
    139,727,041.87x = 192,824,634.44 × 77,005,398.21
  4. Step 4: Simplify right side
    139,727,041.87x = 14,848,537,759,749,878
  5. Step 5: Solve for x
    x = 14,848,537,759,749,878/139,727,041.87
  6. Step 6: Final answer
    x = 106,268,175.16

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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.