Home / 20,199,131,985.40-30,298,697,978.10-8,404,330,431.40

Finding the Fourth Proportional to 20,199,131,985.40, 30,298,697,978.10 and 8,404,330,431.40

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Solution

The fourth proportional to 20,199,131,985.40, 30,298,697,978.10 and 8,404,330,431.40 is: 12,606,495,647.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,199,131,985.40 : 30,298,697,978.10 = 8,404,330,431.40 : x
  2. Step 2: Convert to fraction form
    20,199,131,985.40/30,298,697,978.10 = 8,404,330,431.40/x
  3. Step 3: Cross multiply
    20,199,131,985.40x = 30,298,697,978.10 × 8,404,330,431.40
  4. Step 4: Simplify right side
    20,199,131,985.40x = 254,640,269,449,143,451,648
  5. Step 5: Solve for x
    x = 254,640,269,449,143,451,648/20,199,131,985.40
  6. Step 6: Final answer
    x = 12,606,495,647.10

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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.