Home / 99,997,918.30-138,002,485.35-55,942,289.02

Finding the Fourth Proportional to 99,997,918.30, 138,002,485.35 and 55,942,289.02

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Solution

The fourth proportional to 99,997,918.30, 138,002,485.35 and 55,942,289.02 is: 77,203,356.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,997,918.30 : 138,002,485.35 = 55,942,289.02 : x
  2. Step 2: Convert to fraction form
    99,997,918.30/138,002,485.35 = 55,942,289.02/x
  3. Step 3: Cross multiply
    99,997,918.30x = 138,002,485.35 × 55,942,289.02
  4. Step 4: Simplify right side
    99,997,918.30x = 7,720,174,920,928,016
  5. Step 5: Solve for x
    x = 7,720,174,920,928,016/99,997,918.30
  6. Step 6: Final answer
    x = 77,203,356.35

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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.