Home / 66,698,765.19-100,057,710.44-20,644,678.62

Finding the Fourth Proportional to 66,698,765.19, 100,057,710.44 and 20,644,678.62

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Solution

The fourth proportional to 66,698,765.19, 100,057,710.44 and 20,644,678.62 is: 30,969,977.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,698,765.19 : 100,057,710.44 = 20,644,678.62 : x
  2. Step 2: Convert to fraction form
    66,698,765.19/100,057,710.44 = 20,644,678.62/x
  3. Step 3: Cross multiply
    66,698,765.19x = 100,057,710.44 × 20,644,678.62
  4. Step 4: Simplify right side
    66,698,765.19x = 2,065,659,275,486,818.75
  5. Step 5: Solve for x
    x = 2,065,659,275,486,818.75/66,698,765.19
  6. Step 6: Final answer
    x = 30,969,977.77

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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.