Home / 20,199,131,988.40-30,298,697,982.60-8,404,330,434.40

Finding the Fourth Proportional to 20,199,131,988.40, 30,298,697,982.60 and 8,404,330,434.40

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Solution

The fourth proportional to 20,199,131,988.40, 30,298,697,982.60 and 8,404,330,434.40 is: 12,606,495,651.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,199,131,988.40 : 30,298,697,982.60 = 8,404,330,434.40 : x
  2. Step 2: Convert to fraction form
    20,199,131,988.40/30,298,697,982.60 = 8,404,330,434.40/x
  3. Step 3: Cross multiply
    20,199,131,988.40x = 30,298,697,982.60 × 8,404,330,434.40
  4. Step 4: Simplify right side
    20,199,131,988.40x = 254,640,269,577,859,039,232
  5. Step 5: Solve for x
    x = 254,640,269,577,859,039,232/20,199,131,988.40
  6. Step 6: Final answer
    x = 12,606,495,651.60

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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.