Home / 13,821,421.83-20,715,994.50-10,398,715.80

Finding the Fourth Proportional to 13,821,421.83, 20,715,994.50 and 10,398,715.80

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Solution

The fourth proportional to 13,821,421.83, 20,715,994.50 and 10,398,715.80 is: 15,585,931.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,821,421.83 : 20,715,994.50 = 10,398,715.80 : x
  2. Step 2: Convert to fraction form
    13,821,421.83/20,715,994.50 = 10,398,715.80/x
  3. Step 3: Cross multiply
    13,821,421.83x = 20,715,994.50 × 10,398,715.80
  4. Step 4: Simplify right side
    13,821,421.83x = 215,419,739,319,863.12
  5. Step 5: Solve for x
    x = 215,419,739,319,863.12/13,821,421.83
  6. Step 6: Final answer
    x = 15,585,931.89

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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.