Home / 388,932,911.20-583,034,413.20-146,758,549.60

Finding the Fourth Proportional to 388,932,911.20, 583,034,413.20 and 146,758,549.60

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Solution

The fourth proportional to 388,932,911.20, 583,034,413.20 and 146,758,549.60 is: 220,000,114.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,932,911.20 : 583,034,413.20 = 146,758,549.60 : x
  2. Step 2: Convert to fraction form
    388,932,911.20/583,034,413.20 = 146,758,549.60/x
  3. Step 3: Cross multiply
    388,932,911.20x = 583,034,413.20 × 146,758,549.60
  4. Step 4: Simplify right side
    388,932,911.20x = 85,565,284,848,119,104
  5. Step 5: Solve for x
    x = 85,565,284,848,119,104/388,932,911.20
  6. Step 6: Final answer
    x = 220,000,114.12

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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.