Home / 298,500,561.60-448,422,688.80-290,438,404.80

Finding the Fourth Proportional to 298,500,561.60, 448,422,688.80 and 290,438,404.80

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Solution

The fourth proportional to 298,500,561.60, 448,422,688.80 and 290,438,404.80 is: 436,311,307.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,500,561.60 : 448,422,688.80 = 290,438,404.80 : x
  2. Step 2: Convert to fraction form
    298,500,561.60/448,422,688.80 = 290,438,404.80/x
  3. Step 3: Cross multiply
    298,500,561.60x = 448,422,688.80 × 290,438,404.80
  4. Step 4: Simplify right side
    298,500,561.60x = 130,239,170,411,198,832
  5. Step 5: Solve for x
    x = 130,239,170,411,198,832/298,500,561.60
  6. Step 6: Final answer
    x = 436,311,307.80

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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.