Home / 21,062,948.40-31,594,422.60-18,669,495.60

Finding the Fourth Proportional to 21,062,948.40, 31,594,422.60 and 18,669,495.60

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Solution

The fourth proportional to 21,062,948.40, 31,594,422.60 and 18,669,495.60 is: 28,004,243.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,062,948.40 : 31,594,422.60 = 18,669,495.60 : x
  2. Step 2: Convert to fraction form
    21,062,948.40/31,594,422.60 = 18,669,495.60/x
  3. Step 3: Cross multiply
    21,062,948.40x = 31,594,422.60 × 18,669,495.60
  4. Step 4: Simplify right side
    21,062,948.40x = 589,851,933,715,240.62
  5. Step 5: Solve for x
    x = 589,851,933,715,240.62/21,062,948.40
  6. Step 6: Final answer
    x = 28,004,243.40

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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.