Finding the Fourth Proportional to 1,198,299,990.80, 1,796,316,245.40 and 707,390,224.40
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Solution
The fourth proportional to 1,198,299,990.80, 1,796,316,245.40 and 707,390,224.40 is: 1,060,416,057.48
Step by Step Solution
- Step 1: Write the proportion equation
1,198,299,990.80 : 1,796,316,245.40 = 707,390,224.40 : x - Step 2: Convert to fraction form
1,198,299,990.80/1,796,316,245.40 = 707,390,224.40/x - Step 3: Cross multiply
1,198,299,990.80x = 1,796,316,245.40 × 707,390,224.40 - Step 4: Simplify right side
1,198,299,990.80x = 1,270,696,551,926,871,552 - Step 5: Solve for x
x = 1,270,696,551,926,871,552/1,198,299,990.80 - Step 6: Final answer
x = 1,060,416,057.48
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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.