Home / 851,138,000.40-1,276,707,000.60-204,905,744.40

Finding the Fourth Proportional to 851,138,000.40, 1,276,707,000.60 and 204,905,744.40

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Solution

The fourth proportional to 851,138,000.40, 1,276,707,000.60 and 204,905,744.40 is: 307,358,616.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,138,000.40 : 1,276,707,000.60 = 204,905,744.40 : x
  2. Step 2: Convert to fraction form
    851,138,000.40/1,276,707,000.60 = 204,905,744.40/x
  3. Step 3: Cross multiply
    851,138,000.40x = 1,276,707,000.60 × 204,905,744.40
  4. Step 4: Simplify right side
    851,138,000.40x = 261,604,598,338,634,240
  5. Step 5: Solve for x
    x = 261,604,598,338,634,240/851,138,000.40
  6. Step 6: Final answer
    x = 307,358,616.60

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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.