Home / 138,051,060.22-190,514,449.83-76,175,384.86

Finding the Fourth Proportional to 138,051,060.22, 190,514,449.83 and 76,175,384.86

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Solution

The fourth proportional to 138,051,060.22, 190,514,449.83 and 76,175,384.86 is: 105,124,230.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,051,060.22 : 190,514,449.83 = 76,175,384.86 : x
  2. Step 2: Convert to fraction form
    138,051,060.22/190,514,449.83 = 76,175,384.86/x
  3. Step 3: Cross multiply
    138,051,060.22x = 190,514,449.83 × 76,175,384.86
  4. Step 4: Simplify right side
    138,051,060.22x = 14,512,511,537,191,412
  5. Step 5: Solve for x
    x = 14,512,511,537,191,412/138,051,060.22
  6. Step 6: Final answer
    x = 105,124,230.95

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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.