Home / 38,644,404.12-53,330,680.80-21,242,073.60

Finding the Fourth Proportional to 38,644,404.12, 53,330,680.80 and 21,242,073.60

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Solution

The fourth proportional to 38,644,404.12, 53,330,680.80 and 21,242,073.60 is: 29,314,832.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,644,404.12 : 53,330,680.80 = 21,242,073.60 : x
  2. Step 2: Convert to fraction form
    38,644,404.12/53,330,680.80 = 21,242,073.60/x
  3. Step 3: Cross multiply
    38,644,404.12x = 53,330,680.80 × 21,242,073.60
  4. Step 4: Simplify right side
    38,644,404.12x = 1,132,854,246,691,707
  5. Step 5: Solve for x
    x = 1,132,854,246,691,707/38,644,404.12
  6. Step 6: Final answer
    x = 29,314,832.83

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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.