Home / 13,578,282.40-20,340,851.55-8,170,870.23

Finding the Fourth Proportional to 13,578,282.40, 20,340,851.55 and 8,170,870.23

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Solution

The fourth proportional to 13,578,282.40, 20,340,851.55 and 8,170,870.23 is: 12,240,315.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,578,282.40 : 20,340,851.55 = 8,170,870.23 : x
  2. Step 2: Convert to fraction form
    13,578,282.40/20,340,851.55 = 8,170,870.23/x
  3. Step 3: Cross multiply
    13,578,282.40x = 20,340,851.55 × 8,170,870.23
  4. Step 4: Simplify right side
    13,578,282.40x = 166,202,458,281,040.09
  5. Step 5: Solve for x
    x = 166,202,458,281,040.09/13,578,282.40
  6. Step 6: Final answer
    x = 12,240,315.33

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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.