Finding the Fourth Proportional to 91,037,401.49, 125,641,350.09 and 55,778,605.98
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Solution
The fourth proportional to 91,037,401.49, 125,641,350.09 and 55,778,605.98 is: 76,980,441.52
Step by Step Solution
- Step 1: Write the proportion equation
91,037,401.49 : 125,641,350.09 = 55,778,605.98 : x - Step 2: Convert to fraction form
91,037,401.49/125,641,350.09 = 55,778,605.98/x - Step 3: Cross multiply
91,037,401.49x = 125,641,350.09 × 55,778,605.98 - Step 4: Simplify right side
91,037,401.49x = 7,008,099,361,465,347 - Step 5: Solve for x
x = 7,008,099,361,465,347/91,037,401.49 - Step 6: Final answer
x = 76,980,441.52
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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.