Home / 66,388,934.40-99,583,401.60-20,955,321.60

Finding the Fourth Proportional to 66,388,934.40, 99,583,401.60 and 20,955,321.60

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Solution

The fourth proportional to 66,388,934.40, 99,583,401.60 and 20,955,321.60 is: 31,432,982.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,388,934.40 : 99,583,401.60 = 20,955,321.60 : x
  2. Step 2: Convert to fraction form
    66,388,934.40/99,583,401.60 = 20,955,321.60/x
  3. Step 3: Cross multiply
    66,388,934.40x = 99,583,401.60 × 20,955,321.60
  4. Step 4: Simplify right side
    66,388,934.40x = 2,086,802,206,549,954.50
  5. Step 5: Solve for x
    x = 2,086,802,206,549,954.50/66,388,934.40
  6. Step 6: Final answer
    x = 31,432,982.40

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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.