Home / 314,929,816.40-472,394,724.60-200,421,995.60

Finding the Fourth Proportional to 314,929,816.40, 472,394,724.60 and 200,421,995.60

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Solution

The fourth proportional to 314,929,816.40, 472,394,724.60 and 200,421,995.60 is: 300,632,993.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,929,816.40 : 472,394,724.60 = 200,421,995.60 : x
  2. Step 2: Convert to fraction form
    314,929,816.40/472,394,724.60 = 200,421,995.60/x
  3. Step 3: Cross multiply
    314,929,816.40x = 472,394,724.60 × 200,421,995.60
  4. Step 4: Simplify right side
    314,929,816.40x = 94,678,293,415,244,416
  5. Step 5: Solve for x
    x = 94,678,293,415,244,416/314,929,816.40
  6. Step 6: Final answer
    x = 300,632,993.40

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1.5x scale

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.