Home / 12,127,953,404.80-18,191,930,107.20-8,577,077,219.20

Finding the Fourth Proportional to 12,127,953,404.80, 18,191,930,107.20 and 8,577,077,219.20

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Solution

The fourth proportional to 12,127,953,404.80, 18,191,930,107.20 and 8,577,077,219.20 is: 12,865,615,828.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,127,953,404.80 : 18,191,930,107.20 = 8,577,077,219.20 : x
  2. Step 2: Convert to fraction form
    12,127,953,404.80/18,191,930,107.20 = 8,577,077,219.20/x
  3. Step 3: Cross multiply
    12,127,953,404.80x = 18,191,930,107.20 × 8,577,077,219.20
  4. Step 4: Simplify right side
    12,127,953,404.80x = 156,033,589,295,743,729,664
  5. Step 5: Solve for x
    x = 156,033,589,295,743,729,664/12,127,953,404.80
  6. Step 6: Final answer
    x = 12,865,615,828.80

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Double scale
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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.