Finding the Fourth Proportional to 139,522,092.90, 209,283,139.35 and 42,477,029.70
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Solution
The fourth proportional to 139,522,092.90, 209,283,139.35 and 42,477,029.70 is: 63,715,544.55
Step by Step Solution
- Step 1: Write the proportion equation
139,522,092.90 : 209,283,139.35 = 42,477,029.70 : x - Step 2: Convert to fraction form
139,522,092.90/209,283,139.35 = 42,477,029.70/x - Step 3: Cross multiply
139,522,092.90x = 209,283,139.35 × 42,477,029.70 - Step 4: Simplify right side
139,522,092.90x = 8,889,726,125,879,189 - Step 5: Solve for x
x = 8,889,726,125,879,189/139,522,092.90 - Step 6: Final answer
x = 63,715,544.55
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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.