Home / 39,595,347,976.43-54,642,615,803.40-21,531,920,648.67

Finding the Fourth Proportional to 39,595,347,976.43, 54,642,615,803.40 and 21,531,920,648.67

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Solution

The fourth proportional to 39,595,347,976.43, 54,642,615,803.40 and 21,531,920,648.67 is: 29,714,613,651.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,595,347,976.43 : 54,642,615,803.40 = 21,531,920,648.67 : x
  2. Step 2: Convert to fraction form
    39,595,347,976.43/54,642,615,803.40 = 21,531,920,648.67/x
  3. Step 3: Cross multiply
    39,595,347,976.43x = 54,642,615,803.40 × 21,531,920,648.67
  4. Step 4: Simplify right side
    39,595,347,976.43x = 1,176,560,467,514,570,047,488
  5. Step 5: Solve for x
    x = 1,176,560,467,514,570,047,488/39,595,347,976.43
  6. Step 6: Final answer
    x = 29,714,613,651.46

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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.