Finding the Fourth Proportional to 386,086,684,883.21, 532,799,712,106.68 and 212,471,824,334.73
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Solution
The fourth proportional to 386,086,684,883.21, 532,799,712,106.68 and 212,471,824,334.73 is: 293,211,165,442.21
Step by Step Solution
- Step 1: Write the proportion equation
386,086,684,883.21 : 532,799,712,106.68 = 212,471,824,334.73 : x - Step 2: Convert to fraction form
386,086,684,883.21/532,799,712,106.68 = 212,471,824,334.73/x - Step 3: Cross multiply
386,086,684,883.21x = 532,799,712,106.68 × 212,471,824,334.73 - Step 4: Simplify right side
386,086,684,883.21x = 113,204,926,836,325,237,129,216 - Step 5: Solve for x
x = 113,204,926,836,325,237,129,216/386,086,684,883.21 - Step 6: Final answer
x = 293,211,165,442.21
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.