Home / 20,674,013.40-31,011,020.10-13,446,415.80

Finding the Fourth Proportional to 20,674,013.40, 31,011,020.10 and 13,446,415.80

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Solution

The fourth proportional to 20,674,013.40, 31,011,020.10 and 13,446,415.80 is: 20,169,623.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,674,013.40 : 31,011,020.10 = 13,446,415.80 : x
  2. Step 2: Convert to fraction form
    20,674,013.40/31,011,020.10 = 13,446,415.80/x
  3. Step 3: Cross multiply
    20,674,013.40x = 31,011,020.10 × 13,446,415.80
  4. Step 4: Simplify right side
    20,674,013.40x = 416,987,070,646,757.62
  5. Step 5: Solve for x
    x = 416,987,070,646,757.62/20,674,013.40
  6. Step 6: Final answer
    x = 20,169,623.70

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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.