Finding the Fourth Proportional to 15,495,690.57, 21,335,377.35 and 13,167,672.81
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Solution
The fourth proportional to 15,495,690.57, 21,335,377.35 and 13,167,672.81 is: 18,130,025.70
Step by Step Solution
- Step 1: Write the proportion equation
15,495,690.57 : 21,335,377.35 = 13,167,672.81 : x - Step 2: Convert to fraction form
15,495,690.57/21,335,377.35 = 13,167,672.81/x - Step 3: Cross multiply
15,495,690.57x = 21,335,377.35 × 13,167,672.81 - Step 4: Simplify right side
15,495,690.57x = 280,937,268,222,684.88 - Step 5: Solve for x
x = 280,937,268,222,684.88/15,495,690.57 - Step 6: Final answer
x = 18,130,025.70
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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.