Home / 12,987,077,261.40-19,480,615,892.10-11,127,458,914.20

Finding the Fourth Proportional to 12,987,077,261.40, 19,480,615,892.10 and 11,127,458,914.20

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Solution

The fourth proportional to 12,987,077,261.40, 19,480,615,892.10 and 11,127,458,914.20 is: 16,691,188,371.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,987,077,261.40 : 19,480,615,892.10 = 11,127,458,914.20 : x
  2. Step 2: Convert to fraction form
    12,987,077,261.40/19,480,615,892.10 = 11,127,458,914.20/x
  3. Step 3: Cross multiply
    12,987,077,261.40x = 19,480,615,892.10 × 11,127,458,914.20
  4. Step 4: Simplify right side
    12,987,077,261.40x = 216,769,752,962,654,339,072
  5. Step 5: Solve for x
    x = 216,769,752,962,654,339,072/12,987,077,261.40
  6. Step 6: Final answer
    x = 16,691,188,371.30

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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.