Home / 14,207,999.20-21,311,998.80-12,836,658.40

Finding the Fourth Proportional to 14,207,999.20, 21,311,998.80 and 12,836,658.40

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Solution

The fourth proportional to 14,207,999.20, 21,311,998.80 and 12,836,658.40 is: 19,254,987.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,207,999.20 : 21,311,998.80 = 12,836,658.40 : x
  2. Step 2: Convert to fraction form
    14,207,999.20/21,311,998.80 = 12,836,658.40/x
  3. Step 3: Cross multiply
    14,207,999.20x = 21,311,998.80 × 12,836,658.40
  4. Step 4: Simplify right side
    14,207,999.20x = 273,574,848,416,809.94
  5. Step 5: Solve for x
    x = 273,574,848,416,809.94/14,207,999.20
  6. Step 6: Final answer
    x = 19,254,987.60

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Similar ratio
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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.