Finding the Fourth Proportional to 804,830,813.70, 1,207,246,220.55 and 804,830,813.70
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Solution
The fourth proportional to 804,830,813.70, 1,207,246,220.55 and 804,830,813.70 is: 1,207,246,220.55
Step by Step Solution
- Step 1: Write the proportion equation
804,830,813.70 : 1,207,246,220.55 = 804,830,813.70 : x - Step 2: Convert to fraction form
804,830,813.70/1,207,246,220.55 = 804,830,813.70/x - Step 3: Cross multiply
804,830,813.70x = 1,207,246,220.55 × 804,830,813.70 - Step 4: Simplify right side
804,830,813.70x = 971,628,958,021,506,176 - Step 5: Solve for x
x = 971,628,958,021,506,176/804,830,813.70 - Step 6: Final answer
x = 1,207,246,220.55
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Double scale
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Similar ratio
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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.