Home / 20,412,182.70-30,618,274.05-12,853,910.70

Finding the Fourth Proportional to 20,412,182.70, 30,618,274.05 and 12,853,910.70

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Solution

The fourth proportional to 20,412,182.70, 30,618,274.05 and 12,853,910.70 is: 19,280,866.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,412,182.70 : 30,618,274.05 = 12,853,910.70 : x
  2. Step 2: Convert to fraction form
    20,412,182.70/30,618,274.05 = 12,853,910.70/x
  3. Step 3: Cross multiply
    20,412,182.70x = 30,618,274.05 × 12,853,910.70
  4. Step 4: Simplify right side
    20,412,182.70x = 393,564,560,426,827.31
  5. Step 5: Solve for x
    x = 393,564,560,426,827.31/20,412,182.70
  6. Step 6: Final answer
    x = 19,280,866.05

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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.