Finding the Fourth Proportional to 87,731,439.49, 121,077,510.60 and 48,573,216.94
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Solution
The fourth proportional to 87,731,439.49, 121,077,510.60 and 48,573,216.94 is: 67,035,537.35
Step by Step Solution
- Step 1: Write the proportion equation
87,731,439.49 : 121,077,510.60 = 48,573,216.94 : x - Step 2: Convert to fraction form
87,731,439.49/121,077,510.60 = 48,573,216.94/x - Step 3: Cross multiply
87,731,439.49x = 121,077,510.60 × 48,573,216.94 - Step 4: Simplify right side
87,731,439.49x = 5,881,124,188,928,949 - Step 5: Solve for x
x = 5,881,124,188,928,949/87,731,439.49 - Step 6: Final answer
x = 67,035,537.35
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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.