Home / 314,928,568.40-472,392,852.60-200,420,747.60

Finding the Fourth Proportional to 314,928,568.40, 472,392,852.60 and 200,420,747.60

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Solution

The fourth proportional to 314,928,568.40, 472,392,852.60 and 200,420,747.60 is: 300,631,121.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,928,568.40 : 472,392,852.60 = 200,420,747.60 : x
  2. Step 2: Convert to fraction form
    314,928,568.40/472,392,852.60 = 200,420,747.60/x
  3. Step 3: Cross multiply
    314,928,568.40x = 472,392,852.60 × 200,420,747.60
  4. Step 4: Simplify right side
    314,928,568.40x = 94,677,328,678,988,608
  5. Step 5: Solve for x
    x = 94,677,328,678,988,608/314,928,568.40
  6. Step 6: Final answer
    x = 300,631,121.40

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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.