Home / 13,183,443.40-19,789,910.70-12,317,139.40

Finding the Fourth Proportional to 13,183,443.40, 19,789,910.70 and 12,317,139.40

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Solution

The fourth proportional to 13,183,443.40, 19,789,910.70 and 12,317,139.40 is: 18,489,485.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,183,443.40 : 19,789,910.70 = 12,317,139.40 : x
  2. Step 2: Convert to fraction form
    13,183,443.40/19,789,910.70 = 12,317,139.40/x
  3. Step 3: Cross multiply
    13,183,443.40x = 19,789,910.70 × 12,317,139.40
  4. Step 4: Simplify right side
    13,183,443.40x = 243,755,088,805,451.59
  5. Step 5: Solve for x
    x = 243,755,088,805,451.59/13,183,443.40
  6. Step 6: Final answer
    x = 18,489,485.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.