Finding the Fourth Proportional to 898,679,899.20, 1,348,019,848.80 and 798,350,836.80
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Solution
The fourth proportional to 898,679,899.20, 1,348,019,848.80 and 798,350,836.80 is: 1,197,526,255.20
Step by Step Solution
- Step 1: Write the proportion equation
898,679,899.20 : 1,348,019,848.80 = 798,350,836.80 : x - Step 2: Convert to fraction form
898,679,899.20/1,348,019,848.80 = 798,350,836.80/x - Step 3: Cross multiply
898,679,899.20x = 1,348,019,848.80 × 798,350,836.80 - Step 4: Simplify right side
898,679,899.20x = 1,076,192,774,312,489,344 - Step 5: Solve for x
x = 1,076,192,774,312,489,344/898,679,899.20 - Step 6: Final answer
x = 1,197,526,255.20
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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.