Home / 5,185,731.68-7,778,597.45-1,399,214.55

Finding the Fourth Proportional to 5,185,731.68, 7,778,597.45 and 1,399,214.55

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Solution

The fourth proportional to 5,185,731.68, 7,778,597.45 and 1,399,214.55 is: 2,098,821.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,185,731.68 : 7,778,597.45 = 1,399,214.55 : x
  2. Step 2: Convert to fraction form
    5,185,731.68/7,778,597.45 = 1,399,214.55/x
  3. Step 3: Cross multiply
    5,185,731.68x = 7,778,597.45 × 1,399,214.55
  4. Step 4: Simplify right side
    5,185,731.68x = 10,883,926,723,636.83
  5. Step 5: Solve for x
    x = 10,883,926,723,636.83/5,185,731.68
  6. Step 6: Final answer
    x = 2,098,821.81

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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.