Finding the Fourth Proportional to 681,446,130.28, 941,171,371.08 and 458,039,949.92
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Solution
The fourth proportional to 681,446,130.28, 941,171,371.08 and 458,039,949.92 is: 632,616,531.99
Step by Step Solution
- Step 1: Write the proportion equation
681,446,130.28 : 941,171,371.08 = 458,039,949.92 : x - Step 2: Convert to fraction form
681,446,130.28/941,171,371.08 = 458,039,949.92/x - Step 3: Cross multiply
681,446,130.28x = 941,171,371.08 × 458,039,949.92 - Step 4: Simplify right side
681,446,130.28x = 431,094,087,675,620,992 - Step 5: Solve for x
x = 431,094,087,675,620,992/681,446,130.28 - Step 6: Final answer
x = 632,616,531.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.