Finding the Fourth Proportional to 212,848,622.12, 293,675,511.20 and 124,695,231.06
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Solution
The fourth proportional to 212,848,622.12, 293,675,511.20 and 124,695,231.06 is: 172,046,853.59
Step by Step Solution
- Step 1: Write the proportion equation
212,848,622.12 : 293,675,511.20 = 124,695,231.06 : x - Step 2: Convert to fraction form
212,848,622.12/293,675,511.20 = 124,695,231.06/x - Step 3: Cross multiply
212,848,622.12x = 293,675,511.20 × 124,695,231.06 - Step 4: Simplify right side
212,848,622.12x = 36,619,935,725,747,616 - Step 5: Solve for x
x = 36,619,935,725,747,616/212,848,622.12 - Step 6: Final answer
x = 172,046,853.59
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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.