Finding the Fourth Proportional to 898,679,910.70, 1,348,019,866.05 and 798,350,848.30
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Solution
The fourth proportional to 898,679,910.70, 1,348,019,866.05 and 798,350,848.30 is: 1,197,526,272.45
Step by Step Solution
- Step 1: Write the proportion equation
898,679,910.70 : 1,348,019,866.05 = 798,350,848.30 : x - Step 2: Convert to fraction form
898,679,910.70/1,348,019,866.05 = 798,350,848.30/x - Step 3: Cross multiply
898,679,910.70x = 1,348,019,866.05 × 798,350,848.30 - Step 4: Simplify right side
898,679,910.70x = 1,076,192,803,586,269,824 - Step 5: Solve for x
x = 1,076,192,803,586,269,824/898,679,910.70 - Step 6: Final answer
x = 1,197,526,272.45
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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.