Home / 39,343,647.65-54,294,286.05-21,702,152.25

Finding the Fourth Proportional to 39,343,647.65, 54,294,286.05 and 21,702,152.25

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Solution

The fourth proportional to 39,343,647.65, 54,294,286.05 and 21,702,152.25 is: 29,948,998.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,343,647.65 : 54,294,286.05 = 21,702,152.25 : x
  2. Step 2: Convert to fraction form
    39,343,647.65/54,294,286.05 = 21,702,152.25/x
  3. Step 3: Cross multiply
    39,343,647.65x = 54,294,286.05 × 21,702,152.25
  4. Step 4: Simplify right side
    39,343,647.65x = 1,178,302,862,185,073.75
  5. Step 5: Solve for x
    x = 1,178,302,862,185,073.75/39,343,647.65
  6. Step 6: Final answer
    x = 29,948,998.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.