Home / 47,615,768.96-71,432,846.40-20,321,663.36

Finding the Fourth Proportional to 47,615,768.96, 71,432,846.40 and 20,321,663.36

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Solution

The fourth proportional to 47,615,768.96, 71,432,846.40 and 20,321,663.36 is: 30,486,418.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,615,768.96 : 71,432,846.40 = 20,321,663.36 : x
  2. Step 2: Convert to fraction form
    47,615,768.96/71,432,846.40 = 20,321,663.36/x
  3. Step 3: Cross multiply
    47,615,768.96x = 71,432,846.40 × 20,321,663.36
  4. Step 4: Simplify right side
    47,615,768.96x = 1,451,634,257,387,388
  5. Step 5: Solve for x
    x = 1,451,634,257,387,388/47,615,768.96
  6. Step 6: Final answer
    x = 30,486,418.45

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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.