Home / 5,181,995.51-7,773,989.58-1,986,872.51

Finding the Fourth Proportional to 5,181,995.51, 7,773,989.58 and 1,986,872.51

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Solution

The fourth proportional to 5,181,995.51, 7,773,989.58 and 1,986,872.51 is: 2,980,690.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181,995.51 : 7,773,989.58 = 1,986,872.51 : x
  2. Step 2: Convert to fraction form
    5,181,995.51/7,773,989.58 = 1,986,872.51/x
  3. Step 3: Cross multiply
    5,181,995.51x = 7,773,989.58 × 1,986,872.51
  4. Step 4: Simplify right side
    5,181,995.51x = 15,445,926,189,528.45
  5. Step 5: Solve for x
    x = 15,445,926,189,528.45/5,181,995.51
  6. Step 6: Final answer
    x = 2,980,690.77

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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.