Home / 13,970,042.70-20,955,064.05-12,290,426.70

Finding the Fourth Proportional to 13,970,042.70, 20,955,064.05 and 12,290,426.70

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Solution

The fourth proportional to 13,970,042.70, 20,955,064.05 and 12,290,426.70 is: 18,435,640.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,970,042.70 : 20,955,064.05 = 12,290,426.70 : x
  2. Step 2: Convert to fraction form
    13,970,042.70/20,955,064.05 = 12,290,426.70/x
  3. Step 3: Cross multiply
    13,970,042.70x = 20,955,064.05 × 12,290,426.70
  4. Step 4: Simplify right side
    13,970,042.70x = 257,546,678,700,330.12
  5. Step 5: Solve for x
    x = 257,546,678,700,330.12/13,970,042.70
  6. Step 6: Final answer
    x = 18,435,640.05

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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.