Finding the Fourth Proportional to 974,313,884.10, 1,461,470,826.15 and 457,753,232.10
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Solution
The fourth proportional to 974,313,884.10, 1,461,470,826.15 and 457,753,232.10 is: 686,629,848.15
Step by Step Solution
- Step 1: Write the proportion equation
974,313,884.10 : 1,461,470,826.15 = 457,753,232.10 : x - Step 2: Convert to fraction form
974,313,884.10/1,461,470,826.15 = 457,753,232.10/x - Step 3: Cross multiply
974,313,884.10x = 1,461,470,826.15 × 457,753,232.10 - Step 4: Simplify right side
974,313,884.10x = 668,992,994,290,019,840 - Step 5: Solve for x
x = 668,992,994,290,019,840/974,313,884.10 - Step 6: Final answer
x = 686,629,848.15
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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.