Home / 21,647,420.29-29,862,114.15-13,384,841.34

Finding the Fourth Proportional to 21,647,420.29, 29,862,114.15 and 13,384,841.34

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Solution

The fourth proportional to 21,647,420.29, 29,862,114.15 and 13,384,841.34 is: 18,464,078.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,647,420.29 : 29,862,114.15 = 13,384,841.34 : x
  2. Step 2: Convert to fraction form
    21,647,420.29/29,862,114.15 = 13,384,841.34/x
  3. Step 3: Cross multiply
    21,647,420.29x = 29,862,114.15 × 13,384,841.34
  4. Step 4: Simplify right side
    21,647,420.29x = 399,699,659,974,718.94
  5. Step 5: Solve for x
    x = 399,699,659,974,718.94/21,647,420.29
  6. Step 6: Final answer
    x = 18,464,078.15

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1.5x scale

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.