Home / 5,217,685.20-7,830,415.80-2,692,040.40

Finding the Fourth Proportional to 5,217,685.20, 7,830,415.80 and 2,692,040.40

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Solution

The fourth proportional to 5,217,685.20, 7,830,415.80 and 2,692,040.40 is: 4,040,066.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,217,685.20 : 7,830,415.80 = 2,692,040.40 : x
  2. Step 2: Convert to fraction form
    5,217,685.20/7,830,415.80 = 2,692,040.40/x
  3. Step 3: Cross multiply
    5,217,685.20x = 7,830,415.80 × 2,692,040.40
  4. Step 4: Simplify right side
    5,217,685.20x = 21,079,795,682,398.32
  5. Step 5: Solve for x
    x = 21,079,795,682,398.32/5,217,685.20
  6. Step 6: Final answer
    x = 4,040,066.60

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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.