Home / 18,683,495.40-28,025,243.10-11,471,644.20

Finding the Fourth Proportional to 18,683,495.40, 28,025,243.10 and 11,471,644.20

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Solution

The fourth proportional to 18,683,495.40, 28,025,243.10 and 11,471,644.20 is: 17,207,466.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,683,495.40 : 28,025,243.10 = 11,471,644.20 : x
  2. Step 2: Convert to fraction form
    18,683,495.40/28,025,243.10 = 11,471,644.20/x
  3. Step 3: Cross multiply
    18,683,495.40x = 28,025,243.10 × 11,471,644.20
  4. Step 4: Simplify right side
    18,683,495.40x = 321,495,617,461,705
  5. Step 5: Solve for x
    x = 321,495,617,461,705/18,683,495.40
  6. Step 6: Final answer
    x = 17,207,466.30

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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.