Home / 20,178,192,733.20-30,267,289,099.80-13,901,980,811.40

Finding the Fourth Proportional to 20,178,192,733.20, 30,267,289,099.80 and 13,901,980,811.40

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Solution

The fourth proportional to 20,178,192,733.20, 30,267,289,099.80 and 13,901,980,811.40 is: 20,852,971,217.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,178,192,733.20 : 30,267,289,099.80 = 13,901,980,811.40 : x
  2. Step 2: Convert to fraction form
    20,178,192,733.20/30,267,289,099.80 = 13,901,980,811.40/x
  3. Step 3: Cross multiply
    20,178,192,733.20x = 30,267,289,099.80 × 13,901,980,811.40
  4. Step 4: Simplify right side
    20,178,192,733.20x = 420,775,272,278,515,974,144
  5. Step 5: Solve for x
    x = 420,775,272,278,515,974,144/20,178,192,733.20
  6. Step 6: Final answer
    x = 20,852,971,217.10

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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.