Home / 30,699,998.08-42,385,117.14-19,542,786.39

Finding the Fourth Proportional to 30,699,998.08, 42,385,117.14 and 19,542,786.39

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Solution

The fourth proportional to 30,699,998.08, 42,385,117.14 and 19,542,786.39 is: 26,981,216.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,699,998.08 : 42,385,117.14 = 19,542,786.39 : x
  2. Step 2: Convert to fraction form
    30,699,998.08/42,385,117.14 = 19,542,786.39/x
  3. Step 3: Cross multiply
    30,699,998.08x = 42,385,117.14 × 19,542,786.39
  4. Step 4: Simplify right side
    30,699,998.08x = 828,323,290,382,147.75
  5. Step 5: Solve for x
    x = 828,323,290,382,147.75/30,699,998.08
  6. Step 6: Final answer
    x = 26,981,216.36

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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.