Home / 129,433,991.80-194,150,987.70-61,409,543.80

Finding the Fourth Proportional to 129,433,991.80, 194,150,987.70 and 61,409,543.80

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Solution

The fourth proportional to 129,433,991.80, 194,150,987.70 and 61,409,543.80 is: 92,114,315.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,433,991.80 : 194,150,987.70 = 61,409,543.80 : x
  2. Step 2: Convert to fraction form
    129,433,991.80/194,150,987.70 = 61,409,543.80/x
  3. Step 3: Cross multiply
    129,433,991.80x = 194,150,987.70 × 61,409,543.80
  4. Step 4: Simplify right side
    129,433,991.80x = 11,922,723,582,976,410
  5. Step 5: Solve for x
    x = 11,922,723,582,976,410/129,433,991.80
  6. Step 6: Final answer
    x = 92,114,315.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.