Home / 170,290,430.40-255,435,645.60-74,738,942.40

Finding the Fourth Proportional to 170,290,430.40, 255,435,645.60 and 74,738,942.40

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Solution

The fourth proportional to 170,290,430.40, 255,435,645.60 and 74,738,942.40 is: 112,108,413.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,290,430.40 : 255,435,645.60 = 74,738,942.40 : x
  2. Step 2: Convert to fraction form
    170,290,430.40/255,435,645.60 = 74,738,942.40/x
  3. Step 3: Cross multiply
    170,290,430.40x = 255,435,645.60 × 74,738,942.40
  4. Step 4: Simplify right side
    170,290,430.40x = 19,090,990,003,405,216
  5. Step 5: Solve for x
    x = 19,090,990,003,405,216/170,290,430.40
  6. Step 6: Final answer
    x = 112,108,413.60

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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.