Home / 5,181,421.08-7,772,222.34-1,986,729.24

Finding the Fourth Proportional to 5,181,421.08, 7,772,222.34 and 1,986,729.24

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Solution

The fourth proportional to 5,181,421.08, 7,772,222.34 and 1,986,729.24 is: 2,980,128.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181,421.08 : 7,772,222.34 = 1,986,729.24 : x
  2. Step 2: Convert to fraction form
    5,181,421.08/7,772,222.34 = 1,986,729.24/x
  3. Step 3: Cross multiply
    5,181,421.08x = 7,772,222.34 × 1,986,729.24
  4. Step 4: Simplify right side
    5,181,421.08x = 15,441,301,382,659.22
  5. Step 5: Solve for x
    x = 15,441,301,382,659.22/5,181,421.08
  6. Step 6: Final answer
    x = 2,980,128.65

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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.