Home / 30,699,998.58-42,385,117.83-19,542,786.90

Finding the Fourth Proportional to 30,699,998.58, 42,385,117.83 and 19,542,786.90

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Solution

The fourth proportional to 30,699,998.58, 42,385,117.83 and 19,542,786.90 is: 26,981,217.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,699,998.58 : 42,385,117.83 = 19,542,786.90 : x
  2. Step 2: Convert to fraction form
    30,699,998.58/42,385,117.83 = 19,542,786.90/x
  3. Step 3: Cross multiply
    30,699,998.58x = 42,385,117.83 × 19,542,786.90
  4. Step 4: Simplify right side
    30,699,998.58x = 828,323,325,483,080.38
  5. Step 5: Solve for x
    x = 828,323,325,483,080.38/30,699,998.58
  6. Step 6: Final answer
    x = 26,981,217.06

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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.