Home / 5,185,465.60-7,778,147.20-1,639,609.60

Finding the Fourth Proportional to 5,185,465.60, 7,778,147.20 and 1,639,609.60

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Solution

The fourth proportional to 5,185,465.60, 7,778,147.20 and 1,639,609.60 is: 2,459,398.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,185,465.60 : 7,778,147.20 = 1,639,609.60 : x
  2. Step 2: Convert to fraction form
    5,185,465.60/7,778,147.20 = 1,639,609.60/x
  3. Step 3: Cross multiply
    5,185,465.60x = 7,778,147.20 × 1,639,609.60
  4. Step 4: Simplify right side
    5,185,465.60x = 12,753,124,819,333.12
  5. Step 5: Solve for x
    x = 12,753,124,819,333.12/5,185,465.60
  6. Step 6: Final answer
    x = 2,459,398.21

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Similar ratio
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1.5x scale

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.