Finding the Fourth Proportional to 747,844,275.80, 1,121,766,413.70 and 425,358,003.80
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Solution
The fourth proportional to 747,844,275.80, 1,121,766,413.70 and 425,358,003.80 is: 638,037,005.70
Step by Step Solution
- Step 1: Write the proportion equation
747,844,275.80 : 1,121,766,413.70 = 425,358,003.80 : x - Step 2: Convert to fraction form
747,844,275.80/1,121,766,413.70 = 425,358,003.80/x - Step 3: Cross multiply
747,844,275.80x = 1,121,766,413.70 × 425,358,003.80 - Step 4: Simplify right side
747,844,275.80x = 477,152,322,461,316,992 - Step 5: Solve for x
x = 477,152,322,461,316,992/747,844,275.80 - Step 6: Final answer
x = 638,037,005.70
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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.