Finding the Fourth Proportional to 135,508,428.12, 203,262,239.94 and 38,464,217.82
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Solution
The fourth proportional to 135,508,428.12, 203,262,239.94 and 38,464,217.82 is: 57,696,212.55
Step by Step Solution
- Step 1: Write the proportion equation
135,508,428.12 : 203,262,239.94 = 38,464,217.82 : x - Step 2: Convert to fraction form
135,508,428.12/203,262,239.94 = 38,464,217.82/x - Step 3: Cross multiply
135,508,428.12x = 203,262,239.94 × 38,464,217.82 - Step 4: Simplify right side
135,508,428.12x = 7,818,323,071,633,264 - Step 5: Solve for x
x = 7,818,323,071,633,264/135,508,428.12 - Step 6: Final answer
x = 57,696,212.55
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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.