Home / 298,984,851.60-448,477,277.40-280,844,998.80

Finding the Fourth Proportional to 298,984,851.60, 448,477,277.40 and 280,844,998.80

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Solution

The fourth proportional to 298,984,851.60, 448,477,277.40 and 280,844,998.80 is: 421,267,498.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,984,851.60 : 448,477,277.40 = 280,844,998.80 : x
  2. Step 2: Convert to fraction form
    298,984,851.60/448,477,277.40 = 280,844,998.80/x
  3. Step 3: Cross multiply
    298,984,851.60x = 448,477,277.40 × 280,844,998.80
  4. Step 4: Simplify right side
    298,984,851.60x = 125,952,600,433,230,272
  5. Step 5: Solve for x
    x = 125,952,600,433,230,272/298,984,851.60
  6. Step 6: Final answer
    x = 421,267,498.20

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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.