Home / 699,192,003.20-1,048,788,004.80-427,094,211.20

Finding the Fourth Proportional to 699,192,003.20, 1,048,788,004.80 and 427,094,211.20

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Solution

The fourth proportional to 699,192,003.20, 1,048,788,004.80 and 427,094,211.20 is: 640,641,316.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,192,003.20 : 1,048,788,004.80 = 427,094,211.20 : x
  2. Step 2: Convert to fraction form
    699,192,003.20/1,048,788,004.80 = 427,094,211.20/x
  3. Step 3: Cross multiply
    699,192,003.20x = 1,048,788,004.80 × 427,094,211.20
  4. Step 4: Simplify right side
    699,192,003.20x = 447,931,285,626,077,760
  5. Step 5: Solve for x
    x = 447,931,285,626,077,760/699,192,003.20
  6. Step 6: Final answer
    x = 640,641,316.80

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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.