Home / 90,675,709.05-125,131,089.87-50,983,274.70

Finding the Fourth Proportional to 90,675,709.05, 125,131,089.87 and 50,983,274.70

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Solution

The fourth proportional to 90,675,709.05, 125,131,089.87 and 50,983,274.70 is: 70,356,138.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,675,709.05 : 125,131,089.87 = 50,983,274.70 : x
  2. Step 2: Convert to fraction form
    90,675,709.05/125,131,089.87 = 50,983,274.70/x
  3. Step 3: Cross multiply
    90,675,709.05x = 125,131,089.87 × 50,983,274.70
  4. Step 4: Simplify right side
    90,675,709.05x = 6,379,592,728,352,598
  5. Step 5: Solve for x
    x = 6,379,592,728,352,598/90,675,709.05
  6. Step 6: Final answer
    x = 70,356,138.32

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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.