Finding the Fourth Proportional to 386,086,684,879.97, 532,799,712,102.10 and 212,471,824,331.44
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Solution
The fourth proportional to 386,086,684,879.97, 532,799,712,102.10 and 212,471,824,331.44 is: 293,211,165,437.61
Step by Step Solution
- Step 1: Write the proportion equation
386,086,684,879.97 : 532,799,712,102.10 = 212,471,824,331.44 : x - Step 2: Convert to fraction form
386,086,684,879.97/532,799,712,102.10 = 212,471,824,331.44/x - Step 3: Cross multiply
386,086,684,879.97x = 532,799,712,102.10 × 212,471,824,331.44 - Step 4: Simplify right side
386,086,684,879.97x = 113,204,926,833,599,191,187,456 - Step 5: Solve for x
x = 113,204,926,833,599,191,187,456/386,086,684,879.97 - Step 6: Final answer
x = 293,211,165,437.61
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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.