Finding the Fourth Proportional to 995,977,687.20, 1,493,966,530.80 and 651,992,330.40
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Solution
The fourth proportional to 995,977,687.20, 1,493,966,530.80 and 651,992,330.40 is: 977,988,495.60
Step by Step Solution
- Step 1: Write the proportion equation
995,977,687.20 : 1,493,966,530.80 = 651,992,330.40 : x - Step 2: Convert to fraction form
995,977,687.20/1,493,966,530.80 = 651,992,330.40/x - Step 3: Cross multiply
995,977,687.20x = 1,493,966,530.80 × 651,992,330.40 - Step 4: Simplify right side
995,977,687.20x = 974,054,719,955,895,296 - Step 5: Solve for x
x = 974,054,719,955,895,296/995,977,687.20 - Step 6: Final answer
x = 977,988,495.60
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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.