Finding the Fourth Proportional to 13,025,731.38, 17,963,746.64 and 8,131,407.62
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Solution
The fourth proportional to 13,025,731.38, 17,963,746.64 and 8,131,407.62 is: 11,213,999.59
Step by Step Solution
- Step 1: Write the proportion equation
13,025,731.38 : 17,963,746.64 = 8,131,407.62 : x - Step 2: Convert to fraction form
13,025,731.38/17,963,746.64 = 8,131,407.62/x - Step 3: Cross multiply
13,025,731.38x = 17,963,746.64 × 8,131,407.62 - Step 4: Simplify right side
13,025,731.38x = 146,070,546,312,245.41 - Step 5: Solve for x
x = 146,070,546,312,245.41/13,025,731.38 - Step 6: Final answer
x = 11,213,999.59
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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.