Finding the Fourth Proportional to 797,208,796.80, 1,195,813,195.20 and 766,597,795.20
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Solution
The fourth proportional to 797,208,796.80, 1,195,813,195.20 and 766,597,795.20 is: 1,149,896,692.80
Step by Step Solution
- Step 1: Write the proportion equation
797,208,796.80 : 1,195,813,195.20 = 766,597,795.20 : x - Step 2: Convert to fraction form
797,208,796.80/1,195,813,195.20 = 766,597,795.20/x - Step 3: Cross multiply
797,208,796.80x = 1,195,813,195.20 × 766,597,795.20 - Step 4: Simplify right side
797,208,796.80x = 916,707,758,911,387,264 - Step 5: Solve for x
x = 916,707,758,911,387,264/797,208,796.80 - Step 6: Final answer
x = 1,149,896,692.80
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Double scale
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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.