Home / 28,870,240.48-39,840,930.94-15,817,993.88

Finding the Fourth Proportional to 28,870,240.48, 39,840,930.94 and 15,817,993.88

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Solution

The fourth proportional to 28,870,240.48, 39,840,930.94 and 15,817,993.88 is: 21,828,831.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,870,240.48 : 39,840,930.94 = 15,817,993.88 : x
  2. Step 2: Convert to fraction form
    28,870,240.48/39,840,930.94 = 15,817,993.88/x
  3. Step 3: Cross multiply
    28,870,240.48x = 39,840,930.94 × 15,817,993.88
  4. Step 4: Simplify right side
    28,870,240.48x = 630,203,601,782,422.62
  5. Step 5: Solve for x
    x = 630,203,601,782,422.62/28,870,240.48
  6. Step 6: Final answer
    x = 21,828,831.05

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1.5x scale

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.