Home / 21,779,911.75-30,058,035.39-12,488,346.37

Finding the Fourth Proportional to 21,779,911.75, 30,058,035.39 and 12,488,346.37

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Solution

The fourth proportional to 21,779,911.75, 30,058,035.39 and 12,488,346.37 is: 17,234,925.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,779,911.75 : 30,058,035.39 = 12,488,346.37 : x
  2. Step 2: Convert to fraction form
    21,779,911.75/30,058,035.39 = 12,488,346.37/x
  3. Step 3: Cross multiply
    21,779,911.75x = 30,058,035.39 × 12,488,346.37
  4. Step 4: Simplify right side
    21,779,911.75x = 375,375,157,152,038
  5. Step 5: Solve for x
    x = 375,375,157,152,038/21,779,911.75
  6. Step 6: Final answer
    x = 17,234,925.53

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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.