Home / 80,352,006.80-120,528,010.20-48,103,379.60

Finding the Fourth Proportional to 80,352,006.80, 120,528,010.20 and 48,103,379.60

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Solution

The fourth proportional to 80,352,006.80, 120,528,010.20 and 48,103,379.60 is: 72,155,069.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,352,006.80 : 120,528,010.20 = 48,103,379.60 : x
  2. Step 2: Convert to fraction form
    80,352,006.80/120,528,010.20 = 48,103,379.60/x
  3. Step 3: Cross multiply
    80,352,006.80x = 120,528,010.20 × 48,103,379.60
  4. Step 4: Simplify right side
    80,352,006.80x = 5,797,804,627,083,272
  5. Step 5: Solve for x
    x = 5,797,804,627,083,272/80,352,006.80
  6. Step 6: Final answer
    x = 72,155,069.40

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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.