Home / 18,215,018.12-25,136,749.50-10,479,905.30

Finding the Fourth Proportional to 18,215,018.12, 25,136,749.50 and 10,479,905.30

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Solution

The fourth proportional to 18,215,018.12, 25,136,749.50 and 10,479,905.30 is: 14,462,283.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,215,018.12 : 25,136,749.50 = 10,479,905.30 : x
  2. Step 2: Convert to fraction form
    18,215,018.12/25,136,749.50 = 10,479,905.30/x
  3. Step 3: Cross multiply
    18,215,018.12x = 25,136,749.50 × 10,479,905.30
  4. Step 4: Simplify right side
    18,215,018.12x = 263,430,754,309,822.38
  5. Step 5: Solve for x
    x = 263,430,754,309,822.38/18,215,018.12
  6. Step 6: Final answer
    x = 14,462,283.41

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1.5x scale

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.