Home / 45,317,813.68-67,976,658.78-21,043,466.80

Finding the Fourth Proportional to 45,317,813.68, 67,976,658.78 and 21,043,466.80

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Solution

The fourth proportional to 45,317,813.68, 67,976,658.78 and 21,043,466.80 is: 31,565,171.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,317,813.68 : 67,976,658.78 = 21,043,466.80 : x
  2. Step 2: Convert to fraction form
    45,317,813.68/67,976,658.78 = 21,043,466.80/x
  3. Step 3: Cross multiply
    45,317,813.68x = 67,976,658.78 × 21,043,466.80
  4. Step 4: Simplify right side
    45,317,813.68x = 1,430,464,562,211,858.50
  5. Step 5: Solve for x
    x = 1,430,464,562,211,858.50/45,317,813.68
  6. Step 6: Final answer
    x = 31,565,171.53

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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.