Home / 30,639,485.60-45,969,727.12-10,458,899.36

Finding the Fourth Proportional to 30,639,485.60, 45,969,727.12 and 10,458,899.36

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Solution

The fourth proportional to 30,639,485.60, 45,969,727.12 and 10,458,899.36 is: 15,691,932.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,639,485.60 : 45,969,727.12 = 10,458,899.36 : x
  2. Step 2: Convert to fraction form
    30,639,485.60/45,969,727.12 = 10,458,899.36/x
  3. Step 3: Cross multiply
    30,639,485.60x = 45,969,727.12 × 10,458,899.36
  4. Step 4: Simplify right side
    30,639,485.60x = 480,792,749,554,742.56
  5. Step 5: Solve for x
    x = 480,792,749,554,742.56/30,639,485.60
  6. Step 6: Final answer
    x = 15,691,932.82

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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.