Finding the Fourth Proportional to 1,420,013,316.48, 1,959,580,782.84 and 793,486,892.76
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Solution
The fourth proportional to 1,420,013,316.48, 1,959,580,782.84 and 793,486,892.76 is: 1,094,990,904.97
Step by Step Solution
- Step 1: Write the proportion equation
1,420,013,316.48 : 1,959,580,782.84 = 793,486,892.76 : x - Step 2: Convert to fraction form
1,420,013,316.48/1,959,580,782.84 = 793,486,892.76/x - Step 3: Cross multiply
1,420,013,316.48x = 1,959,580,782.84 × 793,486,892.76 - Step 4: Simplify right side
1,420,013,316.48x = 1,554,901,666,487,919,872 - Step 5: Solve for x
x = 1,554,901,666,487,919,872/1,420,013,316.48 - Step 6: Final answer
x = 1,094,990,904.97
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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.