Home / 78,064,575.89-107,693,786.81-47,114,851.73

Finding the Fourth Proportional to 78,064,575.89, 107,693,786.81 and 47,114,851.73

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Solution

The fourth proportional to 78,064,575.89, 107,693,786.81 and 47,114,851.73 is: 64,997,173.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,064,575.89 : 107,693,786.81 = 47,114,851.73 : x
  2. Step 2: Convert to fraction form
    78,064,575.89/107,693,786.81 = 47,114,851.73/x
  3. Step 3: Cross multiply
    78,064,575.89x = 107,693,786.81 × 47,114,851.73
  4. Step 4: Simplify right side
    78,064,575.89x = 5,073,976,797,559,805
  5. Step 5: Solve for x
    x = 5,073,976,797,559,805/78,064,575.89
  6. Step 6: Final answer
    x = 64,997,173.68

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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.