Home / 15,429,399.35-21,292,327.33-8,460,134.21

Finding the Fourth Proportional to 15,429,399.35, 21,292,327.33 and 8,460,134.21

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Solution

The fourth proportional to 15,429,399.35, 21,292,327.33 and 8,460,134.21 is: 11,674,851.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,429,399.35 : 21,292,327.33 = 8,460,134.21 : x
  2. Step 2: Convert to fraction form
    15,429,399.35/21,292,327.33 = 8,460,134.21/x
  3. Step 3: Cross multiply
    15,429,399.35x = 21,292,327.33 × 8,460,134.21
  4. Step 4: Simplify right side
    15,429,399.35x = 180,135,946,855,050.97
  5. Step 5: Solve for x
    x = 180,135,946,855,050.97/15,429,399.35
  6. Step 6: Final answer
    x = 11,674,851.55

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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.