Finding the Fourth Proportional to 190,078,107.12, 262,307,787.60 and 103,157,979.12
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Solution
The fourth proportional to 190,078,107.12, 262,307,787.60 and 103,157,979.12 is: 142,358,011.06
Step by Step Solution
- Step 1: Write the proportion equation
190,078,107.12 : 262,307,787.60 = 103,157,979.12 : x - Step 2: Convert to fraction form
190,078,107.12/262,307,787.60 = 103,157,979.12/x - Step 3: Cross multiply
190,078,107.12x = 262,307,787.60 × 103,157,979.12 - Step 4: Simplify right side
190,078,107.12x = 27,059,141,276,254,196 - Step 5: Solve for x
x = 27,059,141,276,254,196/190,078,107.12 - Step 6: Final answer
x = 142,358,011.06
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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.