Finding the Fourth Proportional to 992,860,700.12, 1,370,244,545.62 and 741,528,751.76
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Solution
The fourth proportional to 992,860,700.12, 1,370,244,545.62 and 741,528,751.76 is: 1,023,381,958.21
Step by Step Solution
- Step 1: Write the proportion equation
992,860,700.12 : 1,370,244,545.62 = 741,528,751.76 : x - Step 2: Convert to fraction form
992,860,700.12/1,370,244,545.62 = 741,528,751.76/x - Step 3: Cross multiply
992,860,700.12x = 1,370,244,545.62 × 741,528,751.76 - Step 4: Simplify right side
992,860,700.12x = 1,016,075,727,519,546,880 - Step 5: Solve for x
x = 1,016,075,727,519,546,880/992,860,700.12 - Step 6: Final answer
x = 1,023,381,958.21
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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.