Home / 124,654,644.09-172,020,408.30-68,136,853.86

Finding the Fourth Proportional to 124,654,644.09, 172,020,408.30 and 68,136,853.86

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Solution

The fourth proportional to 124,654,644.09, 172,020,408.30 and 68,136,853.86 is: 94,027,218.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,654,644.09 : 172,020,408.30 = 68,136,853.86 : x
  2. Step 2: Convert to fraction form
    124,654,644.09/172,020,408.30 = 68,136,853.86/x
  3. Step 3: Cross multiply
    124,654,644.09x = 172,020,408.30 × 68,136,853.86
  4. Step 4: Simplify right side
    124,654,644.09x = 11,720,929,421,274,632
  5. Step 5: Solve for x
    x = 11,720,929,421,274,632/124,654,644.09
  6. Step 6: Final answer
    x = 94,027,218.21

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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.