Home / 20,674,014.40-31,011,021.60-13,446,416.80

Finding the Fourth Proportional to 20,674,014.40, 31,011,021.60 and 13,446,416.80

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Solution

The fourth proportional to 20,674,014.40, 31,011,021.60 and 13,446,416.80 is: 20,169,625.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,674,014.40 : 31,011,021.60 = 13,446,416.80 : x
  2. Step 2: Convert to fraction form
    20,674,014.40/31,011,021.60 = 13,446,416.80/x
  3. Step 3: Cross multiply
    20,674,014.40x = 31,011,021.60 × 13,446,416.80
  4. Step 4: Simplify right side
    20,674,014.40x = 416,987,121,827,402.94
  5. Step 5: Solve for x
    x = 416,987,121,827,402.94/20,674,014.40
  6. Step 6: Final answer
    x = 20,169,625.20

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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.