Home / 86,995,131.85-120,052,372.19-64,767,504.50

Finding the Fourth Proportional to 86,995,131.85, 120,052,372.19 and 64,767,504.50

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Solution

The fourth proportional to 86,995,131.85, 120,052,372.19 and 64,767,504.50 is: 89,378,478.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,995,131.85 : 120,052,372.19 = 64,767,504.50 : x
  2. Step 2: Convert to fraction form
    86,995,131.85/120,052,372.19 = 64,767,504.50/x
  3. Step 3: Cross multiply
    86,995,131.85x = 120,052,372.19 × 64,767,504.50
  4. Step 4: Simplify right side
    86,995,131.85x = 7,775,492,555,577,597
  5. Step 5: Solve for x
    x = 7,775,492,555,577,597/86,995,131.85
  6. Step 6: Final answer
    x = 89,378,478.89

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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.