Home / 449,339,919.90-674,009,879.85-372,749,430.30

Finding the Fourth Proportional to 449,339,919.90, 674,009,879.85 and 372,749,430.30

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Solution

The fourth proportional to 449,339,919.90, 674,009,879.85 and 372,749,430.30 is: 559,124,145.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,339,919.90 : 674,009,879.85 = 372,749,430.30 : x
  2. Step 2: Convert to fraction form
    449,339,919.90/674,009,879.85 = 372,749,430.30/x
  3. Step 3: Cross multiply
    449,339,919.90x = 674,009,879.85 × 372,749,430.30
  4. Step 4: Simplify right side
    449,339,919.90x = 251,236,798,730,658,976
  5. Step 5: Solve for x
    x = 251,236,798,730,658,976/449,339,919.90
  6. Step 6: Final answer
    x = 559,124,145.45

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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.