Finding the Fourth Proportional to 77,897,986.64, 107,489,855.35 and 44,868,977.70
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Solution
The fourth proportional to 77,897,986.64, 107,489,855.35 and 44,868,977.70 is: 61,913,794.32
Step by Step Solution
- Step 1: Write the proportion equation
77,897,986.64 : 107,489,855.35 = 44,868,977.70 : x - Step 2: Convert to fraction form
77,897,986.64/107,489,855.35 = 44,868,977.70/x - Step 3: Cross multiply
77,897,986.64x = 107,489,855.35 × 44,868,977.70 - Step 4: Simplify right side
77,897,986.64x = 4,822,959,922,328,375 - Step 5: Solve for x
x = 4,822,959,922,328,375/77,897,986.64 - Step 6: Final answer
x = 61,913,794.32
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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.