Home / 137,163,366.87-189,285,544.98-74,439,448.18

Finding the Fourth Proportional to 137,163,366.87, 189,285,544.98 and 74,439,448.18

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Solution

The fourth proportional to 137,163,366.87, 189,285,544.98 and 74,439,448.18 is: 102,726,492.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,163,366.87 : 189,285,544.98 = 74,439,448.18 : x
  2. Step 2: Convert to fraction form
    137,163,366.87/189,285,544.98 = 74,439,448.18/x
  3. Step 3: Cross multiply
    137,163,366.87x = 189,285,544.98 × 74,439,448.18
  4. Step 4: Simplify right side
    137,163,366.87x = 14,090,311,517,353,286
  5. Step 5: Solve for x
    x = 14,090,311,517,353,286/137,163,366.87
  6. Step 6: Final answer
    x = 102,726,492.05

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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.