Home / 13,538,518.20-18,683,046.24-7,343,549.52

Finding the Fourth Proportional to 13,538,518.20, 18,683,046.24 and 7,343,549.52

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Solution

The fourth proportional to 13,538,518.20, 18,683,046.24 and 7,343,549.52 is: 10,134,039.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,538,518.20 : 18,683,046.24 = 7,343,549.52 : x
  2. Step 2: Convert to fraction form
    13,538,518.20/18,683,046.24 = 7,343,549.52/x
  3. Step 3: Cross multiply
    13,538,518.20x = 18,683,046.24 × 7,343,549.52
  4. Step 4: Simplify right side
    13,538,518.20x = 137,199,875,247,889.78
  5. Step 5: Solve for x
    x = 137,199,875,247,889.78/13,538,518.20
  6. Step 6: Final answer
    x = 10,134,039.28

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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.