Home / 15,348,149.76-21,186,478.08-10,120,327.68

Finding the Fourth Proportional to 15,348,149.76, 21,186,478.08 and 10,120,327.68

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Solution

The fourth proportional to 15,348,149.76, 21,186,478.08 and 10,120,327.68 is: 13,970,029.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,348,149.76 : 21,186,478.08 = 10,120,327.68 : x
  2. Step 2: Convert to fraction form
    15,348,149.76/21,186,478.08 = 10,120,327.68/x
  3. Step 3: Cross multiply
    15,348,149.76x = 21,186,478.08 × 10,120,327.68
  4. Step 4: Simplify right side
    15,348,149.76x = 214,414,100,554,737.22
  5. Step 5: Solve for x
    x = 214,414,100,554,737.22/15,348,149.76
  6. Step 6: Final answer
    x = 13,970,029.22

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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.