Home / 157,977,415.41-218,027,247.78-91,900,698.69

Finding the Fourth Proportional to 157,977,415.41, 218,027,247.78 and 91,900,698.69

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Solution

The fourth proportional to 157,977,415.41, 218,027,247.78 and 91,900,698.69 is: 126,833,676.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,977,415.41 : 218,027,247.78 = 91,900,698.69 : x
  2. Step 2: Convert to fraction form
    157,977,415.41/218,027,247.78 = 91,900,698.69/x
  3. Step 3: Cross multiply
    157,977,415.41x = 218,027,247.78 × 91,900,698.69
  4. Step 4: Simplify right side
    157,977,415.41x = 20,036,856,404,439,752
  5. Step 5: Solve for x
    x = 20,036,856,404,439,752/157,977,415.41
  6. Step 6: Final answer
    x = 126,833,676.53

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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.