Finding the Fourth Proportional to 517,218,211.10, 775,827,316.65 and 323,348,534.30
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Solution
The fourth proportional to 517,218,211.10, 775,827,316.65 and 323,348,534.30 is: 485,022,801.45
Step by Step Solution
- Step 1: Write the proportion equation
517,218,211.10 : 775,827,316.65 = 323,348,534.30 : x - Step 2: Convert to fraction form
517,218,211.10/775,827,316.65 = 323,348,534.30/x - Step 3: Cross multiply
517,218,211.10x = 775,827,316.65 × 323,348,534.30 - Step 4: Simplify right side
517,218,211.10x = 250,862,625,708,679,488 - Step 5: Solve for x
x = 250,862,625,708,679,488/517,218,211.10 - Step 6: Final answer
x = 485,022,801.45
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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.