Home / 18,809,339.79-25,930,650.15-12,615,493.35

Finding the Fourth Proportional to 18,809,339.79, 25,930,650.15 and 12,615,493.35

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Solution

The fourth proportional to 18,809,339.79, 25,930,650.15 and 12,615,493.35 is: 17,391,782.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,809,339.79 : 25,930,650.15 = 12,615,493.35 : x
  2. Step 2: Convert to fraction form
    18,809,339.79/25,930,650.15 = 12,615,493.35/x
  3. Step 3: Cross multiply
    18,809,339.79x = 25,930,650.15 × 12,615,493.35
  4. Step 4: Simplify right side
    18,809,339.79x = 327,127,944,528,501.50
  5. Step 5: Solve for x
    x = 327,127,944,528,501.50/18,809,339.79
  6. Step 6: Final answer
    x = 17,391,782.39

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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.