Finding the Fourth Proportional to 124,710,456.18, 172,104,053.94 and 68,198,524.14
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Solution
The fourth proportional to 124,710,456.18, 172,104,053.94 and 68,198,524.14 is: 94,115,945.35
Step by Step Solution
- Step 1: Write the proportion equation
124,710,456.18 : 172,104,053.94 = 68,198,524.14 : x - Step 2: Convert to fraction form
124,710,456.18/172,104,053.94 = 68,198,524.14/x - Step 3: Cross multiply
124,710,456.18x = 172,104,053.94 × 68,198,524.14 - Step 4: Simplify right side
124,710,456.18x = 11,737,242,477,840,580 - Step 5: Solve for x
x = 11,737,242,477,840,580/124,710,456.18 - Step 6: Final answer
x = 94,115,945.35
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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.