Home / 280,060,091.10-420,090,136.65-280,060,091.10

Finding the Fourth Proportional to 280,060,091.10, 420,090,136.65 and 280,060,091.10

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Solution

The fourth proportional to 280,060,091.10, 420,090,136.65 and 280,060,091.10 is: 420,090,136.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,060,091.10 : 420,090,136.65 = 280,060,091.10 : x
  2. Step 2: Convert to fraction form
    280,060,091.10/420,090,136.65 = 280,060,091.10/x
  3. Step 3: Cross multiply
    280,060,091.10x = 420,090,136.65 × 280,060,091.10
  4. Step 4: Simplify right side
    280,060,091.10x = 117,650,481,940,410,448
  5. Step 5: Solve for x
    x = 117,650,481,940,410,448/280,060,091.10
  6. Step 6: Final answer
    x = 420,090,136.65

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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.