Home / 121,051,198.04-166,855,508.16-81,878,689.22

Finding the Fourth Proportional to 121,051,198.04, 166,855,508.16 and 81,878,689.22

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Solution

The fourth proportional to 121,051,198.04, 166,855,508.16 and 81,878,689.22 is: 112,860,595.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,051,198.04 : 166,855,508.16 = 81,878,689.22 : x
  2. Step 2: Convert to fraction form
    121,051,198.04/166,855,508.16 = 81,878,689.22/x
  3. Step 3: Cross multiply
    121,051,198.04x = 166,855,508.16 × 81,878,689.22
  4. Step 4: Simplify right side
    121,051,198.04x = 13,661,910,297,277,814
  5. Step 5: Solve for x
    x = 13,661,910,297,277,814/121,051,198.04
  6. Step 6: Final answer
    x = 112,860,595.50

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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.