Home / 9,639,638.44-13,302,836.80-5,288,645.68

Finding the Fourth Proportional to 9,639,638.44, 13,302,836.80 and 5,288,645.68

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Solution

The fourth proportional to 9,639,638.44, 13,302,836.80 and 5,288,645.68 is: 7,298,405.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,639,638.44 : 13,302,836.80 = 5,288,645.68 : x
  2. Step 2: Convert to fraction form
    9,639,638.44/13,302,836.80 = 5,288,645.68/x
  3. Step 3: Cross multiply
    9,639,638.44x = 13,302,836.80 × 5,288,645.68
  4. Step 4: Simplify right side
    9,639,638.44x = 70,353,990,374,065.02
  5. Step 5: Solve for x
    x = 70,353,990,374,065.02/9,639,638.44
  6. Step 6: Final answer
    x = 7,298,405.52

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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.