Finding the Fourth Proportional to 212,878,214.91, 293,772,379.91 and 115,093,070.91
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Solution
The fourth proportional to 212,878,214.91, 293,772,379.91 and 115,093,070.91 is: 158,828,677.54
Step by Step Solution
- Step 1: Write the proportion equation
212,878,214.91 : 293,772,379.91 = 115,093,070.91 : x - Step 2: Convert to fraction form
212,878,214.91/293,772,379.91 = 115,093,070.91/x - Step 3: Cross multiply
212,878,214.91x = 293,772,379.91 × 115,093,070.91 - Step 4: Simplify right side
212,878,214.91x = 33,811,165,351,805,620 - Step 5: Solve for x
x = 33,811,165,351,805,620/212,878,214.91 - Step 6: Final answer
x = 158,828,677.54
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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.