Home / 13,258,712.80-19,888,069.20-6,870,923.20

Finding the Fourth Proportional to 13,258,712.80, 19,888,069.20 and 6,870,923.20

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Solution

The fourth proportional to 13,258,712.80, 19,888,069.20 and 6,870,923.20 is: 10,306,384.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,258,712.80 : 19,888,069.20 = 6,870,923.20 : x
  2. Step 2: Convert to fraction form
    13,258,712.80/19,888,069.20 = 6,870,923.20/x
  3. Step 3: Cross multiply
    13,258,712.80x = 19,888,069.20 × 6,870,923.20
  4. Step 4: Simplify right side
    13,258,712.80x = 136,649,396,069,485.44
  5. Step 5: Solve for x
    x = 136,649,396,069,485.44/13,258,712.80
  6. Step 6: Final answer
    x = 10,306,384.80

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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.