Finding the Fourth Proportional to 804,769,103.40, 1,207,153,655.10 and 757,151,989.80
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Solution
The fourth proportional to 804,769,103.40, 1,207,153,655.10 and 757,151,989.80 is: 1,135,727,984.70
Step by Step Solution
- Step 1: Write the proportion equation
804,769,103.40 : 1,207,153,655.10 = 757,151,989.80 : x - Step 2: Convert to fraction form
804,769,103.40/1,207,153,655.10 = 757,151,989.80/x - Step 3: Cross multiply
804,769,103.40x = 1,207,153,655.10 × 757,151,989.80 - Step 4: Simplify right side
804,769,103.40x = 913,998,791,953,307,776 - Step 5: Solve for x
x = 913,998,791,953,307,776/804,769,103.40 - Step 6: Final answer
x = 1,135,727,984.70
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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.