Home / 13,828,768.20-20,743,152.30-12,458,831.40

Finding the Fourth Proportional to 13,828,768.20, 20,743,152.30 and 12,458,831.40

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Solution

The fourth proportional to 13,828,768.20, 20,743,152.30 and 12,458,831.40 is: 18,688,247.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,828,768.20 : 20,743,152.30 = 12,458,831.40 : x
  2. Step 2: Convert to fraction form
    13,828,768.20/20,743,152.30 = 12,458,831.40/x
  3. Step 3: Cross multiply
    13,828,768.20x = 20,743,152.30 × 12,458,831.40
  4. Step 4: Simplify right side
    13,828,768.20x = 258,435,437,210,222.25
  5. Step 5: Solve for x
    x = 258,435,437,210,222.25/13,828,768.20
  6. Step 6: Final answer
    x = 18,688,247.10

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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.