Finding the Fourth Proportional to 946,493,128.54, 1,306,161,070.68 and 528,805,413.28
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Solution
The fourth proportional to 946,493,128.54, 1,306,161,070.68 and 528,805,413.28 is: 729,751,779.45
Step by Step Solution
- Step 1: Write the proportion equation
946,493,128.54 : 1,306,161,070.68 = 528,805,413.28 : x - Step 2: Convert to fraction form
946,493,128.54/1,306,161,070.68 = 528,805,413.28/x - Step 3: Cross multiply
946,493,128.54x = 1,306,161,070.68 × 528,805,413.28 - Step 4: Simplify right side
946,493,128.54x = 690,705,044,791,184,640 - Step 5: Solve for x
x = 690,705,044,791,184,640/946,493,128.54 - Step 6: Final answer
x = 729,751,779.45
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.