Home / 13,579,219.02-18,738,948.56-7,467,647.52

Finding the Fourth Proportional to 13,579,219.02, 18,738,948.56 and 7,467,647.52

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Solution

The fourth proportional to 13,579,219.02, 18,738,948.56 and 7,467,647.52 is: 10,305,148.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,579,219.02 : 18,738,948.56 = 7,467,647.52 : x
  2. Step 2: Convert to fraction form
    13,579,219.02/18,738,948.56 = 7,467,647.52/x
  3. Step 3: Cross multiply
    13,579,219.02x = 18,738,948.56 × 7,467,647.52
  4. Step 4: Simplify right side
    13,579,219.02x = 139,935,862,741,491.55
  5. Step 5: Solve for x
    x = 139,935,862,741,491.55/13,579,219.02
  6. Step 6: Final answer
    x = 10,305,148.07

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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.