Finding the Fourth Proportional to 995,982,891.20, 1,493,974,336.80 and 651,997,534.40
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Solution
The fourth proportional to 995,982,891.20, 1,493,974,336.80 and 651,997,534.40 is: 977,996,301.60
Step by Step Solution
- Step 1: Write the proportion equation
995,982,891.20 : 1,493,974,336.80 = 651,997,534.40 : x - Step 2: Convert to fraction form
995,982,891.20/1,493,974,336.80 = 651,997,534.40/x - Step 3: Cross multiply
995,982,891.20x = 1,493,974,336.80 × 651,997,534.40 - Step 4: Simplify right side
995,982,891.20x = 974,067,584,050,475,136 - Step 5: Solve for x
x = 974,067,584,050,475,136/995,982,891.20 - Step 6: Final answer
x = 977,996,301.60
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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.