Home / 489,388,876.80-734,083,315.20-470,577,177.60

Finding the Fourth Proportional to 489,388,876.80, 734,083,315.20 and 470,577,177.60

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Solution

The fourth proportional to 489,388,876.80, 734,083,315.20 and 470,577,177.60 is: 705,865,766.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,388,876.80 : 734,083,315.20 = 470,577,177.60 : x
  2. Step 2: Convert to fraction form
    489,388,876.80/734,083,315.20 = 470,577,177.60/x
  3. Step 3: Cross multiply
    489,388,876.80x = 734,083,315.20 × 470,577,177.60
  4. Step 4: Simplify right side
    489,388,876.80x = 345,442,854,590,067,200
  5. Step 5: Solve for x
    x = 345,442,854,590,067,200/489,388,876.80
  6. Step 6: Final answer
    x = 705,865,766.40

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1.5x scale

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.