Finding the Fourth Proportional to 386,311,252,431.78, 579,553,299,145.80 and 117,721,253,567.07
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Solution
The fourth proportional to 386,311,252,431.78, 579,553,299,145.80 and 117,721,253,567.07 is: 176,608,215,408.95
Step by Step Solution
- Step 1: Write the proportion equation
386,311,252,431.78 : 579,553,299,145.80 = 117,721,253,567.07 : x - Step 2: Convert to fraction form
386,311,252,431.78/579,553,299,145.80 = 117,721,253,567.07/x - Step 3: Cross multiply
386,311,252,431.78x = 579,553,299,145.80 × 117,721,253,567.07 - Step 4: Simplify right side
386,311,252,431.78x = 68,225,740,884,374,708,027,392 - Step 5: Solve for x
x = 68,225,740,884,374,708,027,392/386,311,252,431.78 - Step 6: Final answer
x = 176,608,215,408.95
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.