Home / 419,648,218.02-579,115,098.72-231,472,291.86

Finding the Fourth Proportional to 419,648,218.02, 579,115,098.72 and 231,472,291.86

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Solution

The fourth proportional to 419,648,218.02, 579,115,098.72 and 231,472,291.86 is: 319,432,070.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,648,218.02 : 579,115,098.72 = 231,472,291.86 : x
  2. Step 2: Convert to fraction form
    419,648,218.02/579,115,098.72 = 231,472,291.86/x
  3. Step 3: Cross multiply
    419,648,218.02x = 579,115,098.72 × 231,472,291.86
  4. Step 4: Simplify right side
    419,648,218.02x = 134,049,099,151,448,560
  5. Step 5: Solve for x
    x = 134,049,099,151,448,560/419,648,218.02
  6. Step 6: Final answer
    x = 319,432,070.47

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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.