Finding the Fourth Proportional to 137,480,922.58, 189,724,660.12 and 74,756,571.07
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Solution
The fourth proportional to 137,480,922.58, 189,724,660.12 and 74,756,571.07 is: 103,164,604.74
Step by Step Solution
- Step 1: Write the proportion equation
137,480,922.58 : 189,724,660.12 = 74,756,571.07 : x - Step 2: Convert to fraction form
137,480,922.58/189,724,660.12 = 74,756,571.07/x - Step 3: Cross multiply
137,480,922.58x = 189,724,660.12 × 74,756,571.07 - Step 4: Simplify right side
137,480,922.58x = 14,183,165,037,043,752 - Step 5: Solve for x
x = 14,183,165,037,043,752/137,480,922.58 - Step 6: Final answer
x = 103,164,604.74
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.