Home / 397,563,771,835.45-596,429,422,371.85-128,931,805,656.56

Finding the Fourth Proportional to 397,563,771,835.45, 596,429,422,371.85 and 128,931,805,656.56

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Solution

The fourth proportional to 397,563,771,835.45, 596,429,422,371.85 and 128,931,805,656.56 is: 193,424,873,745.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,563,771,835.45 : 596,429,422,371.85 = 128,931,805,656.56 : x
  2. Step 2: Convert to fraction form
    397,563,771,835.45/596,429,422,371.85 = 128,931,805,656.56/x
  3. Step 3: Cross multiply
    397,563,771,835.45x = 596,429,422,371.85 × 128,931,805,656.56
  4. Step 4: Simplify right side
    397,563,771,835.45x = 76,898,722,373,101,693,173,760
  5. Step 5: Solve for x
    x = 76,898,722,373,101,693,173,760/397,563,771,835.45
  6. Step 6: Final answer
    x = 193,424,873,745.61

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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.