Home / 18,139,276.69-25,032,201.84-9,990,514.69

Finding the Fourth Proportional to 18,139,276.69, 25,032,201.84 and 9,990,514.69

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Solution

The fourth proportional to 18,139,276.69, 25,032,201.84 and 9,990,514.69 is: 13,786,910.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,139,276.69 : 25,032,201.84 = 9,990,514.69 : x
  2. Step 2: Convert to fraction form
    18,139,276.69/25,032,201.84 = 9,990,514.69/x
  3. Step 3: Cross multiply
    18,139,276.69x = 25,032,201.84 × 9,990,514.69
  4. Step 4: Simplify right side
    18,139,276.69x = 250,084,580,142,984.53
  5. Step 5: Solve for x
    x = 250,084,580,142,984.53/18,139,276.69
  6. Step 6: Final answer
    x = 13,786,910.27

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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.