Home / 20,178,192,837.20-30,267,289,255.80-13,901,980,915.40

Finding the Fourth Proportional to 20,178,192,837.20, 30,267,289,255.80 and 13,901,980,915.40

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Solution

The fourth proportional to 20,178,192,837.20, 30,267,289,255.80 and 13,901,980,915.40 is: 20,852,971,373.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,178,192,837.20 : 30,267,289,255.80 = 13,901,980,915.40 : x
  2. Step 2: Convert to fraction form
    20,178,192,837.20/30,267,289,255.80 = 13,901,980,915.40/x
  3. Step 3: Cross multiply
    20,178,192,837.20x = 30,267,289,255.80 × 13,901,980,915.40
  4. Step 4: Simplify right side
    20,178,192,837.20x = 420,775,277,595,023,048,704
  5. Step 5: Solve for x
    x = 420,775,277,595,023,048,704/20,178,192,837.20
  6. Step 6: Final answer
    x = 20,852,971,373.10

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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.