Finding the Fourth Proportional to 788,974,567.20, 1,183,461,850.80 and 329,242,672.80
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Solution
The fourth proportional to 788,974,567.20, 1,183,461,850.80 and 329,242,672.80 is: 493,864,009.20
Step by Step Solution
- Step 1: Write the proportion equation
788,974,567.20 : 1,183,461,850.80 = 329,242,672.80 : x - Step 2: Convert to fraction form
788,974,567.20/1,183,461,850.80 = 329,242,672.80/x - Step 3: Cross multiply
788,974,567.20x = 1,183,461,850.80 × 329,242,672.80 - Step 4: Simplify right side
788,974,567.20x = 389,646,142,914,226,816 - Step 5: Solve for x
x = 389,646,142,914,226,816/788,974,567.20 - Step 6: Final answer
x = 493,864,009.20
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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.