Home / 65,372,855.21-90,218,620.30-36,004,179.98

Finding the Fourth Proportional to 65,372,855.21, 90,218,620.30 and 36,004,179.98

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Solution

The fourth proportional to 65,372,855.21, 90,218,620.30 and 36,004,179.98 is: 49,688,015.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,372,855.21 : 90,218,620.30 = 36,004,179.98 : x
  2. Step 2: Convert to fraction form
    65,372,855.21/90,218,620.30 = 36,004,179.98/x
  3. Step 3: Cross multiply
    65,372,855.21x = 90,218,620.30 × 36,004,179.98
  4. Step 4: Simplify right side
    65,372,855.21x = 3,248,247,442,828,481
  5. Step 5: Solve for x
    x = 3,248,247,442,828,481/65,372,855.21
  6. Step 6: Final answer
    x = 49,688,015.50

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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.