Finding the Fourth Proportional to 3,986,139,202.80, 5,979,177,311.40 and 1,038,413,122.80
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Solution
The fourth proportional to 3,986,139,202.80, 5,979,177,311.40 and 1,038,413,122.80 is: 1,557,611,480.14
Step by Step Solution
- Step 1: Write the proportion equation
3,986,139,202.80 : 5,979,177,311.40 = 1,038,413,122.80 : x - Step 2: Convert to fraction form
3,986,139,202.80/5,979,177,311.40 = 1,038,413,122.80/x - Step 3: Cross multiply
3,986,139,202.80x = 5,979,177,311.40 × 1,038,413,122.80 - Step 4: Simplify right side
3,986,139,202.80x = 6,208,856,183,705,781,248 - Step 5: Solve for x
x = 6,208,856,183,705,781,248/3,986,139,202.80 - Step 6: Final answer
x = 1,557,611,480.14
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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.