Home / 131,109,584.85-180,931,263.30-72,372,288.24

Finding the Fourth Proportional to 131,109,584.85, 180,931,263.30 and 72,372,288.24

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Solution

The fourth proportional to 131,109,584.85, 180,931,263.30 and 72,372,288.24 is: 99,873,777.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,109,584.85 : 180,931,263.30 = 72,372,288.24 : x
  2. Step 2: Convert to fraction form
    131,109,584.85/180,931,263.30 = 72,372,288.24/x
  3. Step 3: Cross multiply
    131,109,584.85x = 180,931,263.30 × 72,372,288.24
  4. Step 4: Simplify right side
    131,109,584.85x = 13,094,409,539,174,934
  5. Step 5: Solve for x
    x = 13,094,409,539,174,934/131,109,584.85
  6. Step 6: Final answer
    x = 99,873,777.76

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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.