Home / 103,493,214,000.45-155,239,821,000.67-85,826,839,702.05

Finding the Fourth Proportional to 103,493,214,000.45, 155,239,821,000.67 and 85,826,839,702.05

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Solution

The fourth proportional to 103,493,214,000.45, 155,239,821,000.67 and 85,826,839,702.05 is: 128,740,259,553.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,493,214,000.45 : 155,239,821,000.67 = 85,826,839,702.05 : x
  2. Step 2: Convert to fraction form
    103,493,214,000.45/155,239,821,000.67 = 85,826,839,702.05/x
  3. Step 3: Cross multiply
    103,493,214,000.45x = 155,239,821,000.67 × 85,826,839,702.05
  4. Step 4: Simplify right side
    103,493,214,000.45x = 13,323,743,232,399,440,347,136
  5. Step 5: Solve for x
    x = 13,323,743,232,399,440,347,136/103,493,214,000.45
  6. Step 6: Final answer
    x = 128,740,259,553.07

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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.