Finding the Fourth Proportional to 845,102,413.80, 1,267,653,620.70 and 737,606,989.80
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Solution
The fourth proportional to 845,102,413.80, 1,267,653,620.70 and 737,606,989.80 is: 1,106,410,484.70
Step by Step Solution
- Step 1: Write the proportion equation
845,102,413.80 : 1,267,653,620.70 = 737,606,989.80 : x - Step 2: Convert to fraction form
845,102,413.80/1,267,653,620.70 = 737,606,989.80/x - Step 3: Cross multiply
845,102,413.80x = 1,267,653,620.70 × 737,606,989.80 - Step 4: Simplify right side
845,102,413.80x = 935,030,171,273,597,952 - Step 5: Solve for x
x = 935,030,171,273,597,952/845,102,413.80 - Step 6: Final answer
x = 1,106,410,484.70
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Double scale
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Similar ratio
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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.