Finding the Fourth Proportional to 11,316,801.60, 15,616,929.60 and 6,160,147.20
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Solution
The fourth proportional to 11,316,801.60, 15,616,929.60 and 6,160,147.20 is: 8,500,863.45
Step by Step Solution
- Step 1: Write the proportion equation
11,316,801.60 : 15,616,929.60 = 6,160,147.20 : x - Step 2: Convert to fraction form
11,316,801.60/15,616,929.60 = 6,160,147.20/x - Step 3: Cross multiply
11,316,801.60x = 15,616,929.60 × 6,160,147.20 - Step 4: Simplify right side
11,316,801.60x = 96,202,585,148,037.12 - Step 5: Solve for x
x = 96,202,585,148,037.12/11,316,801.60 - Step 6: Final answer
x = 8,500,863.45
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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.