Home / 2,945,987.80-4,064,090.34-1,913,422.36

Finding the Fourth Proportional to 2,945,987.80, 4,064,090.34 and 1,913,422.36

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Solution

The fourth proportional to 2,945,987.80, 4,064,090.34 and 1,913,422.36 is: 2,639,631.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945,987.80 : 4,064,090.34 = 1,913,422.36 : x
  2. Step 2: Convert to fraction form
    2,945,987.80/4,064,090.34 = 1,913,422.36/x
  3. Step 3: Cross multiply
    2,945,987.80x = 4,064,090.34 × 1,913,422.36
  4. Step 4: Simplify right side
    2,945,987.80x = 7,776,321,329,616.00
  5. Step 5: Solve for x
    x = 7,776,321,329,616.00/2,945,987.80
  6. Step 6: Final answer
    x = 2,639,631.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.