Home / 124,654,646.10-172,020,411.06-68,136,855.86

Finding the Fourth Proportional to 124,654,646.10, 172,020,411.06 and 68,136,855.86

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Solution

The fourth proportional to 124,654,646.10, 172,020,411.06 and 68,136,855.86 is: 94,027,220.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,654,646.10 : 172,020,411.06 = 68,136,855.86 : x
  2. Step 2: Convert to fraction form
    124,654,646.10/172,020,411.06 = 68,136,855.86/x
  3. Step 3: Cross multiply
    124,654,646.10x = 172,020,411.06 × 68,136,855.86
  4. Step 4: Simplify right side
    124,654,646.10x = 11,720,929,953,373,170
  5. Step 5: Solve for x
    x = 11,720,929,953,373,170/124,654,646.10
  6. Step 6: Final answer
    x = 94,027,220.97

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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.