Finding the Fourth Proportional to 478,893,857,340.87, 718,342,649,678.93 and 115,858,940,066.99
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Solution
The fourth proportional to 478,893,857,340.87, 718,342,649,678.93 and 115,858,940,066.99 is: 173,788,860,978.17
Step by Step Solution
- Step 1: Write the proportion equation
478,893,857,340.87 : 718,342,649,678.93 = 115,858,940,066.99 : x - Step 2: Convert to fraction form
478,893,857,340.87/718,342,649,678.93 = 115,858,940,066.99/x - Step 3: Cross multiply
478,893,857,340.87x = 718,342,649,678.93 × 115,858,940,066.99 - Step 4: Simplify right side
478,893,857,340.87x = 83,226,417,996,713,959,620,608 - Step 5: Solve for x
x = 83,226,417,996,713,959,620,608/478,893,857,340.87 - Step 6: Final answer
x = 173,788,860,978.17
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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.