Home / 21,004,636.80-31,554,194.40-20,201,570.40

Finding the Fourth Proportional to 21,004,636.80, 31,554,194.40 and 20,201,570.40

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Solution

The fourth proportional to 21,004,636.80, 31,554,194.40 and 20,201,570.40 is: 30,347,788.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,004,636.80 : 31,554,194.40 = 20,201,570.40 : x
  2. Step 2: Convert to fraction form
    21,004,636.80/31,554,194.40 = 20,201,570.40/x
  3. Step 3: Cross multiply
    21,004,636.80x = 31,554,194.40 × 20,201,570.40
  4. Step 4: Simplify right side
    21,004,636.80x = 637,444,279,586,885.62
  5. Step 5: Solve for x
    x = 637,444,279,586,885.62/21,004,636.80
  6. Step 6: Final answer
    x = 30,347,788.71

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1.5x scale

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.