Home / 30,821,004.11-42,532,879.52-17,768,200.79

Finding the Fourth Proportional to 30,821,004.11, 42,532,879.52 and 17,768,200.79

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Solution

The fourth proportional to 30,821,004.11, 42,532,879.52 and 17,768,200.79 is: 24,520,055.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,821,004.11 : 42,532,879.52 = 17,768,200.79 : x
  2. Step 2: Convert to fraction form
    30,821,004.11/42,532,879.52 = 17,768,200.79/x
  3. Step 3: Cross multiply
    30,821,004.11x = 42,532,879.52 × 17,768,200.79
  4. Step 4: Simplify right side
    30,821,004.11x = 755,732,743,186,733.38
  5. Step 5: Solve for x
    x = 755,732,743,186,733.38/30,821,004.11
  6. Step 6: Final answer
    x = 24,520,055.89

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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.