Home / 21,779,910.75-30,058,034.01-12,488,345.37

Finding the Fourth Proportional to 21,779,910.75, 30,058,034.01 and 12,488,345.37

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Solution

The fourth proportional to 21,779,910.75, 30,058,034.01 and 12,488,345.37 is: 17,234,924.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,779,910.75 : 30,058,034.01 = 12,488,345.37 : x
  2. Step 2: Convert to fraction form
    21,779,910.75/30,058,034.01 = 12,488,345.37/x
  3. Step 3: Cross multiply
    21,779,910.75x = 30,058,034.01 × 12,488,345.37
  4. Step 4: Simplify right side
    21,779,910.75x = 375,375,109,860,086
  5. Step 5: Solve for x
    x = 375,375,109,860,086/21,779,910.75
  6. Step 6: Final answer
    x = 17,234,924.15

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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.