Home / 30,206,455.20-45,309,682.80-8,931,319.20

Finding the Fourth Proportional to 30,206,455.20, 45,309,682.80 and 8,931,319.20

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Solution

The fourth proportional to 30,206,455.20, 45,309,682.80 and 8,931,319.20 is: 13,396,978.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,206,455.20 : 45,309,682.80 = 8,931,319.20 : x
  2. Step 2: Convert to fraction form
    30,206,455.20/45,309,682.80 = 8,931,319.20/x
  3. Step 3: Cross multiply
    30,206,455.20x = 45,309,682.80 × 8,931,319.20
  4. Step 4: Simplify right side
    30,206,455.20x = 404,675,239,937,549.69
  5. Step 5: Solve for x
    x = 404,675,239,937,549.69/30,206,455.20
  6. Step 6: Final answer
    x = 13,396,978.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.