Home / 12,120,508,270.40-18,180,762,405.60-11,447,066,235.20

Finding the Fourth Proportional to 12,120,508,270.40, 18,180,762,405.60 and 11,447,066,235.20

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Solution

The fourth proportional to 12,120,508,270.40, 18,180,762,405.60 and 11,447,066,235.20 is: 17,170,599,352.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,120,508,270.40 : 18,180,762,405.60 = 11,447,066,235.20 : x
  2. Step 2: Convert to fraction form
    12,120,508,270.40/18,180,762,405.60 = 11,447,066,235.20/x
  3. Step 3: Cross multiply
    12,120,508,270.40x = 18,180,762,405.60 × 11,447,066,235.20
  4. Step 4: Simplify right side
    12,120,508,270.40x = 208,116,391,463,337,295,872
  5. Step 5: Solve for x
    x = 208,116,391,463,337,295,872/12,120,508,270.40
  6. Step 6: Final answer
    x = 17,170,599,352.80

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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.