Finding the Fourth Proportional to 639,672,992.29, 882,693,942.71 and 368,102,261.82
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Solution
The fourth proportional to 639,672,992.29, 882,693,942.71 and 368,102,261.82 is: 507,949,594.12
Step by Step Solution
- Step 1: Write the proportion equation
639,672,992.29 : 882,693,942.71 = 368,102,261.82 : x - Step 2: Convert to fraction form
639,672,992.29/882,693,942.71 = 368,102,261.82/x - Step 3: Cross multiply
639,672,992.29x = 882,693,942.71 × 368,102,261.82 - Step 4: Simplify right side
639,672,992.29x = 324,921,636,803,896,704 - Step 5: Solve for x
x = 324,921,636,803,896,704/639,672,992.29 - Step 6: Final answer
x = 507,949,594.12
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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.