Home / 13,139,124.60-18,000,299.50-12,647,887.03

Finding the Fourth Proportional to 13,139,124.60, 18,000,299.50 and 12,647,887.03

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Solution

The fourth proportional to 13,139,124.60, 18,000,299.50 and 12,647,887.03 is: 17,327,315.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,139,124.60 : 18,000,299.50 = 12,647,887.03 : x
  2. Step 2: Convert to fraction form
    13,139,124.60/18,000,299.50 = 12,647,887.03/x
  3. Step 3: Cross multiply
    13,139,124.60x = 18,000,299.50 × 12,647,887.03
  4. Step 4: Simplify right side
    13,139,124.60x = 227,665,754,582,165.47
  5. Step 5: Solve for x
    x = 227,665,754,582,165.47/13,139,124.60
  6. Step 6: Final answer
    x = 17,327,315.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.