Home / 66,104,466.40-91,209,217.84-39,998,335.20

Finding the Fourth Proportional to 66,104,466.40, 91,209,217.84 and 39,998,335.20

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Solution

The fourth proportional to 66,104,466.40, 91,209,217.84 and 39,998,335.20 is: 55,188,659.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,104,466.40 : 91,209,217.84 = 39,998,335.20 : x
  2. Step 2: Convert to fraction form
    66,104,466.40/91,209,217.84 = 39,998,335.20/x
  3. Step 3: Cross multiply
    66,104,466.40x = 91,209,217.84 × 39,998,335.20
  4. Step 4: Simplify right side
    66,104,466.40x = 3,648,216,868,494,140.50
  5. Step 5: Solve for x
    x = 3,648,216,868,494,140.50/66,104,466.40
  6. Step 6: Final answer
    x = 55,188,659.21

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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.