Home / 20,331,971,747.20-30,497,957,620.80-7,241,044,643.20

Finding the Fourth Proportional to 20,331,971,747.20, 30,497,957,620.80 and 7,241,044,643.20

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Solution

The fourth proportional to 20,331,971,747.20, 30,497,957,620.80 and 7,241,044,643.20 is: 10,861,566,964.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,331,971,747.20 : 30,497,957,620.80 = 7,241,044,643.20 : x
  2. Step 2: Convert to fraction form
    20,331,971,747.20/30,497,957,620.80 = 7,241,044,643.20/x
  3. Step 3: Cross multiply
    20,331,971,747.20x = 30,497,957,620.80 × 7,241,044,643.20
  4. Step 4: Simplify right side
    20,331,971,747.20x = 220,837,072,658,634,440,704
  5. Step 5: Solve for x
    x = 220,837,072,658,634,440,704/20,331,971,747.20
  6. Step 6: Final answer
    x = 10,861,566,964.80

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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.