Home / 39,905,639.20-59,876,084.40-19,424,000.80

Finding the Fourth Proportional to 39,905,639.20, 59,876,084.40 and 19,424,000.80

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Solution

The fourth proportional to 39,905,639.20, 59,876,084.40 and 19,424,000.80 is: 29,144,580.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,905,639.20 : 59,876,084.40 = 19,424,000.80 : x
  2. Step 2: Convert to fraction form
    39,905,639.20/59,876,084.40 = 19,424,000.80/x
  3. Step 3: Cross multiply
    39,905,639.20x = 59,876,084.40 × 19,424,000.80
  4. Step 4: Simplify right side
    39,905,639.20x = 1,163,033,111,286,467.50
  5. Step 5: Solve for x
    x = 1,163,033,111,286,467.50/39,905,639.20
  6. Step 6: Final answer
    x = 29,144,580.43

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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.