Home / 77,543,246.42-107,007,836.86-42,262,165.52

Finding the Fourth Proportional to 77,543,246.42, 107,007,836.86 and 42,262,165.52

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Solution

The fourth proportional to 77,543,246.42, 107,007,836.86 and 42,262,165.52 is: 58,320,783.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,543,246.42 : 107,007,836.86 = 42,262,165.52 : x
  2. Step 2: Convert to fraction form
    77,543,246.42/107,007,836.86 = 42,262,165.52/x
  3. Step 3: Cross multiply
    77,543,246.42x = 107,007,836.86 × 42,262,165.52
  4. Step 4: Simplify right side
    77,543,246.42x = 4,522,382,913,314,477
  5. Step 5: Solve for x
    x = 4,522,382,913,314,477/77,543,246.42
  6. Step 6: Final answer
    x = 58,320,783.85

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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.