Finding the Fourth Proportional to 8,471,090,625.81, 12,691,910,368.08 and 5,944,660,634.13
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Solution
The fourth proportional to 8,471,090,625.81, 12,691,910,368.08 and 5,944,660,634.13 is: 8,906,657,155.47
Step by Step Solution
- Step 1: Write the proportion equation
8,471,090,625.81 : 12,691,910,368.08 = 5,944,660,634.13 : x - Step 2: Convert to fraction form
8,471,090,625.81/12,691,910,368.08 = 5,944,660,634.13/x - Step 3: Cross multiply
8,471,090,625.81x = 12,691,910,368.08 × 5,944,660,634.13 - Step 4: Simplify right side
8,471,090,625.81x = 75,449,099,937,031,569,408 - Step 5: Solve for x
x = 75,449,099,937,031,569,408/8,471,090,625.81 - Step 6: Final answer
x = 8,906,657,155.47
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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.