Home / 30,821,121.23-42,533,041.14-17,768,317.91

Finding the Fourth Proportional to 30,821,121.23, 42,533,041.14 and 17,768,317.91

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Solution

The fourth proportional to 30,821,121.23, 42,533,041.14 and 17,768,317.91 is: 24,520,217.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,821,121.23 : 42,533,041.14 = 17,768,317.91 : x
  2. Step 2: Convert to fraction form
    30,821,121.23/42,533,041.14 = 17,768,317.91/x
  3. Step 3: Cross multiply
    30,821,121.23x = 42,533,041.14 × 17,768,317.91
  4. Step 4: Simplify right side
    30,821,121.23x = 755,740,596,654,628.88
  5. Step 5: Solve for x
    x = 755,740,596,654,628.88/30,821,121.23
  6. Step 6: Final answer
    x = 24,520,217.52

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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.