Home / 39,595,347,662.72-54,642,615,370.32-21,531,920,334.60

Finding the Fourth Proportional to 39,595,347,662.72, 54,642,615,370.32 and 21,531,920,334.60

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Solution

The fourth proportional to 39,595,347,662.72, 54,642,615,370.32 and 21,531,920,334.60 is: 29,714,613,217.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,595,347,662.72 : 54,642,615,370.32 = 21,531,920,334.60 : x
  2. Step 2: Convert to fraction form
    39,595,347,662.72/54,642,615,370.32 = 21,531,920,334.60/x
  3. Step 3: Cross multiply
    39,595,347,662.72x = 54,642,615,370.32 × 21,531,920,334.60
  4. Step 4: Simplify right side
    39,595,347,662.72x = 1,176,560,441,027,919,609,856
  5. Step 5: Solve for x
    x = 1,176,560,441,027,919,609,856/39,595,347,662.72
  6. Step 6: Final answer
    x = 29,714,613,217.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.