Finding the Fourth Proportional to 91,303,048.86, 125,984,757.54 and 55,521,237.09
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Solution
The fourth proportional to 91,303,048.86, 125,984,757.54 and 55,521,237.09 is: 76,611,128.33
Step by Step Solution
- Step 1: Write the proportion equation
91,303,048.86 : 125,984,757.54 = 55,521,237.09 : x - Step 2: Convert to fraction form
91,303,048.86/125,984,757.54 = 55,521,237.09/x - Step 3: Cross multiply
91,303,048.86x = 125,984,757.54 × 55,521,237.09 - Step 4: Simplify right side
91,303,048.86x = 6,994,829,593,104,506 - Step 5: Solve for x
x = 6,994,829,593,104,506/91,303,048.86 - Step 6: Final answer
x = 76,611,128.33
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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.