Home / 77,068,871.73-106,252,155-61,226,520.75

Finding the Fourth Proportional to 77,068,871.73, 106,252,155 and 61,226,520.75

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Solution

The fourth proportional to 77,068,871.73, 106,252,155 and 61,226,520.75 is: 84,410,860.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,068,871.73 : 106,252,155 = 61,226,520.75 : x
  2. Step 2: Convert to fraction form
    77,068,871.73/106,252,155 = 61,226,520.75/x
  3. Step 3: Cross multiply
    77,068,871.73x = 106,252,155 × 61,226,520.75
  4. Step 4: Simplify right side
    77,068,871.73x = 6,505,449,772,839,716
  5. Step 5: Solve for x
    x = 6,505,449,772,839,716/77,068,871.73
  6. Step 6: Final answer
    x = 84,410,860.40

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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.