Home / 298,947,009.80-448,420,514.70-273,118,977.20

Finding the Fourth Proportional to 298,947,009.80, 448,420,514.70 and 273,118,977.20

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Solution

The fourth proportional to 298,947,009.80, 448,420,514.70 and 273,118,977.20 is: 409,678,465.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,947,009.80 : 448,420,514.70 = 273,118,977.20 : x
  2. Step 2: Convert to fraction form
    298,947,009.80/448,420,514.70 = 273,118,977.20/x
  3. Step 3: Cross multiply
    298,947,009.80x = 448,420,514.70 × 273,118,977.20
  4. Step 4: Simplify right side
    298,947,009.80x = 122,472,152,330,361,552
  5. Step 5: Solve for x
    x = 122,472,152,330,361,552/298,947,009.80
  6. Step 6: Final answer
    x = 409,678,465.80

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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.