Home / 18,430,142.08-25,446,189.12-11,919,529.60

Finding the Fourth Proportional to 18,430,142.08, 25,446,189.12 and 11,919,529.60

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Solution

The fourth proportional to 18,430,142.08, 25,446,189.12 and 11,919,529.60 is: 16,457,095.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,430,142.08 : 25,446,189.12 = 11,919,529.60 : x
  2. Step 2: Convert to fraction form
    18,430,142.08/25,446,189.12 = 11,919,529.60/x
  3. Step 3: Cross multiply
    18,430,142.08x = 25,446,189.12 × 11,919,529.60
  4. Step 4: Simplify right side
    18,430,142.08x = 303,306,604,423,037.94
  5. Step 5: Solve for x
    x = 303,306,604,423,037.94/18,430,142.08
  6. Step 6: Final answer
    x = 16,457,095.29

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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.