Home / 18,139,271.44-25,032,194.59-9,990,509.44

Finding the Fourth Proportional to 18,139,271.44, 25,032,194.59 and 9,990,509.44

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Solution

The fourth proportional to 18,139,271.44, 25,032,194.59 and 9,990,509.44 is: 13,786,903.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,139,271.44 : 25,032,194.59 = 9,990,509.44 : x
  2. Step 2: Convert to fraction form
    18,139,271.44/25,032,194.59 = 9,990,509.44/x
  3. Step 3: Cross multiply
    18,139,271.44x = 25,032,194.59 × 9,990,509.44
  4. Step 4: Simplify right side
    18,139,271.44x = 250,084,376,267,755.16
  5. Step 5: Solve for x
    x = 250,084,376,267,755.16/18,139,271.44
  6. Step 6: Final answer
    x = 13,786,903.03

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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.