Finding the Fourth Proportional to 67,008,712.93, 100,518,859.61 and 18,486,566.75
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Solution
The fourth proportional to 67,008,712.93, 100,518,859.61 and 18,486,566.75 is: 27,731,447.55
Step by Step Solution
- Step 1: Write the proportion equation
67,008,712.93 : 100,518,859.61 = 18,486,566.75 : x - Step 2: Convert to fraction form
67,008,712.93/100,518,859.61 = 18,486,566.75/x - Step 3: Cross multiply
67,008,712.93x = 100,518,859.61 × 18,486,566.75 - Step 4: Simplify right side
67,008,712.93x = 1,858,248,607,721,711.25 - Step 5: Solve for x
x = 1,858,248,607,721,711.25/67,008,712.93 - Step 6: Final answer
x = 27,731,447.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.