Home / 698,936,003.70-1,048,404,005.55-426,838,211.70

Finding the Fourth Proportional to 698,936,003.70, 1,048,404,005.55 and 426,838,211.70

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Solution

The fourth proportional to 698,936,003.70, 1,048,404,005.55 and 426,838,211.70 is: 640,257,317.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,936,003.70 : 1,048,404,005.55 = 426,838,211.70 : x
  2. Step 2: Convert to fraction form
    698,936,003.70/1,048,404,005.55 = 426,838,211.70/x
  3. Step 3: Cross multiply
    698,936,003.70x = 1,048,404,005.55 × 426,838,211.70
  4. Step 4: Simplify right side
    698,936,003.70x = 447,498,890,868,078,848
  5. Step 5: Solve for x
    x = 447,498,890,868,078,848/698,936,003.70
  6. Step 6: Final answer
    x = 640,257,317.55

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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.