Finding the Fourth Proportional to 906,706,976.40, 1,271,808,414 and 906,706,976.40
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Solution
The fourth proportional to 906,706,976.40, 1,271,808,414 and 906,706,976.40 is: 1,271,808,414
Step by Step Solution
- Step 1: Write the proportion equation
906,706,976.40 : 1,271,808,414 = 906,706,976.40 : x - Step 2: Convert to fraction form
906,706,976.40/1,271,808,414 = 906,706,976.40/x - Step 3: Cross multiply
906,706,976.40x = 1,271,808,414 × 906,706,976.40 - Step 4: Simplify right side
906,706,976.40x = 1,153,157,561,618,019,328 - Step 5: Solve for x
x = 1,153,157,561,618,019,328/906,706,976.40 - Step 6: Final answer
x = 1,271,808,414
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.