Finding the Fourth Proportional to 31,212,370.64, 46,808,838.84 and 11,012,880.08
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Solution
The fourth proportional to 31,212,370.64, 46,808,838.84 and 11,012,880.08 is: 16,515,891.56
Step by Step Solution
- Step 1: Write the proportion equation
31,212,370.64 : 46,808,838.84 = 11,012,880.08 : x - Step 2: Convert to fraction form
31,212,370.64/46,808,838.84 = 11,012,880.08/x - Step 3: Cross multiply
31,212,370.64x = 46,808,838.84 × 11,012,880.08 - Step 4: Simplify right side
31,212,370.64x = 515,500,128,828,966.38 - Step 5: Solve for x
x = 515,500,128,828,966.38/31,212,370.64 - Step 6: Final answer
x = 16,515,891.56
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.