Home / 99,997,919.30-138,002,486.74-55,942,290.02

Finding the Fourth Proportional to 99,997,919.30, 138,002,486.74 and 55,942,290.02

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Solution

The fourth proportional to 99,997,919.30, 138,002,486.74 and 55,942,290.02 is: 77,203,357.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,997,919.30 : 138,002,486.74 = 55,942,290.02 : x
  2. Step 2: Convert to fraction form
    99,997,919.30/138,002,486.74 = 55,942,290.02/x
  3. Step 3: Cross multiply
    99,997,919.30x = 138,002,486.74 × 55,942,290.02
  4. Step 4: Simplify right side
    99,997,919.30x = 7,720,175,136,690,285
  5. Step 5: Solve for x
    x = 7,720,175,136,690,285/99,997,919.30
  6. Step 6: Final answer
    x = 77,203,357.74

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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.