Finding the Fourth Proportional to 797,811,531.55, 1,100,968,420.97 and 440,594,423.12
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Solution
The fourth proportional to 797,811,531.55, 1,100,968,420.97 and 440,594,423.12 is: 608,013,957.09
Step by Step Solution
- Step 1: Write the proportion equation
797,811,531.55 : 1,100,968,420.97 = 440,594,423.12 : x - Step 2: Convert to fraction form
797,811,531.55/1,100,968,420.97 = 440,594,423.12/x - Step 3: Cross multiply
797,811,531.55x = 1,100,968,420.97 × 440,594,423.12 - Step 4: Simplify right side
797,811,531.55x = 485,080,546,309,512,960 - Step 5: Solve for x
x = 485,080,546,309,512,960/797,811,531.55 - Step 6: Final answer
x = 608,013,957.09
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Double scale
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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.