Home / 489,452,690.40-734,179,035.60-448,638,021.60

Finding the Fourth Proportional to 489,452,690.40, 734,179,035.60 and 448,638,021.60

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Solution

The fourth proportional to 489,452,690.40, 734,179,035.60 and 448,638,021.60 is: 672,957,032.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,452,690.40 : 734,179,035.60 = 448,638,021.60 : x
  2. Step 2: Convert to fraction form
    489,452,690.40/734,179,035.60 = 448,638,021.60/x
  3. Step 3: Cross multiply
    489,452,690.40x = 734,179,035.60 × 448,638,021.60
  4. Step 4: Simplify right side
    489,452,690.40x = 329,380,630,031,779,968
  5. Step 5: Solve for x
    x = 329,380,630,031,779,968/489,452,690.40
  6. Step 6: Final answer
    x = 672,957,032.40

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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.