Home / 281,824,000.40-422,736,000.60-128,768,992.40

Finding the Fourth Proportional to 281,824,000.40, 422,736,000.60 and 128,768,992.40

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Solution

The fourth proportional to 281,824,000.40, 422,736,000.60 and 128,768,992.40 is: 193,153,488.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,824,000.40 : 422,736,000.60 = 128,768,992.40 : x
  2. Step 2: Convert to fraction form
    281,824,000.40/422,736,000.60 = 128,768,992.40/x
  3. Step 3: Cross multiply
    281,824,000.40x = 422,736,000.60 × 128,768,992.40
  4. Step 4: Simplify right side
    281,824,000.40x = 54,435,288,848,467,800
  5. Step 5: Solve for x
    x = 54,435,288,848,467,800/281,824,000.40
  6. Step 6: Final answer
    x = 193,153,488.60

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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.