Home / 15,608,979.80-21,526,079.64-13,403,092.43

Finding the Fourth Proportional to 15,608,979.80, 21,526,079.64 and 13,403,092.43

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Solution

The fourth proportional to 15,608,979.80, 21,526,079.64 and 13,403,092.43 is: 18,483,977.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,608,979.80 : 21,526,079.64 = 13,403,092.43 : x
  2. Step 2: Convert to fraction form
    15,608,979.80/21,526,079.64 = 13,403,092.43/x
  3. Step 3: Cross multiply
    15,608,979.80x = 21,526,079.64 × 13,403,092.43
  4. Step 4: Simplify right side
    15,608,979.80x = 288,516,035,070,461.12
  5. Step 5: Solve for x
    x = 288,516,035,070,461.12/15,608,979.80
  6. Step 6: Final answer
    x = 18,483,977.73

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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.