Home / 20,431,939,577.02-30,633,200,404.52-12,555,077,850.11

Finding the Fourth Proportional to 20,431,939,577.02, 30,633,200,404.52 and 12,555,077,850.11

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Solution

The fourth proportional to 20,431,939,577.02, 30,633,200,404.52 and 12,555,077,850.11 is: 18,823,578,369.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,431,939,577.02 : 30,633,200,404.52 = 12,555,077,850.11 : x
  2. Step 2: Convert to fraction form
    20,431,939,577.02/30,633,200,404.52 = 12,555,077,850.11/x
  3. Step 3: Cross multiply
    20,431,939,577.02x = 30,633,200,404.52 × 12,555,077,850.11
  4. Step 4: Simplify right side
    20,431,939,577.02x = 384,602,215,876,768,235,520
  5. Step 5: Solve for x
    x = 384,602,215,876,768,235,520/20,431,939,577.02
  6. Step 6: Final answer
    x = 18,823,578,369.89

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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.