Home / 5,185,468.60-7,778,151.70-1,639,612.60

Finding the Fourth Proportional to 5,185,468.60, 7,778,151.70 and 1,639,612.60

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Solution

The fourth proportional to 5,185,468.60, 7,778,151.70 and 1,639,612.60 is: 2,459,402.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,185,468.60 : 7,778,151.70 = 1,639,612.60 : x
  2. Step 2: Convert to fraction form
    5,185,468.60/7,778,151.70 = 1,639,612.60/x
  3. Step 3: Cross multiply
    5,185,468.60x = 7,778,151.70 × 1,639,612.60
  4. Step 4: Simplify right side
    5,185,468.60x = 12,753,155,532,031.42
  5. Step 5: Solve for x
    x = 12,753,155,532,031.42/5,185,468.60
  6. Step 6: Final answer
    x = 2,459,402.71

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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.