Finding the Fourth Proportional to 346,960,015.21, 478,800,356.82 and 198,279,430.95
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Solution
The fourth proportional to 346,960,015.21, 478,800,356.82 and 198,279,430.95 is: 273,623,063.54
Step by Step Solution
- Step 1: Write the proportion equation
346,960,015.21 : 478,800,356.82 = 198,279,430.95 : x - Step 2: Convert to fraction form
346,960,015.21/478,800,356.82 = 198,279,430.95/x - Step 3: Cross multiply
346,960,015.21x = 478,800,356.82 × 198,279,430.95 - Step 4: Simplify right side
346,960,015.21x = 94,936,262,288,926,544 - Step 5: Solve for x
x = 94,936,262,288,926,544/346,960,015.21 - Step 6: Final answer
x = 273,623,063.54
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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.