Home / 18,887,901.57-28,328,683.03-5,242,434.24

Finding the Fourth Proportional to 18,887,901.57, 28,328,683.03 and 5,242,434.24

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Solution

The fourth proportional to 18,887,901.57, 28,328,683.03 and 5,242,434.24 is: 7,862,771.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,887,901.57 : 28,328,683.03 = 5,242,434.24 : x
  2. Step 2: Convert to fraction form
    18,887,901.57/28,328,683.03 = 5,242,434.24/x
  3. Step 3: Cross multiply
    18,887,901.57x = 28,328,683.03 × 5,242,434.24
  4. Step 4: Simplify right side
    18,887,901.57x = 148,511,257,744,682.16
  5. Step 5: Solve for x
    x = 148,511,257,744,682.16/18,887,901.57
  6. Step 6: Final answer
    x = 7,862,771.69

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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.