Home / 198,592,942.40-297,889,413.60-54,985,774.40

Finding the Fourth Proportional to 198,592,942.40, 297,889,413.60 and 54,985,774.40

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Solution

The fourth proportional to 198,592,942.40, 297,889,413.60 and 54,985,774.40 is: 82,478,661.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,592,942.40 : 297,889,413.60 = 54,985,774.40 : x
  2. Step 2: Convert to fraction form
    198,592,942.40/297,889,413.60 = 54,985,774.40/x
  3. Step 3: Cross multiply
    198,592,942.40x = 297,889,413.60 × 54,985,774.40
  4. Step 4: Simplify right side
    198,592,942.40x = 16,379,680,092,357,892
  5. Step 5: Solve for x
    x = 16,379,680,092,357,892/198,592,942.40
  6. Step 6: Final answer
    x = 82,478,661.60

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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.