Finding the Fourth Proportional to 115,713,680.36, 159,674,325.18 and 68,662,646.60
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Solution
The fourth proportional to 115,713,680.36, 159,674,325.18 and 68,662,646.60 is: 94,748,189.90
Step by Step Solution
- Step 1: Write the proportion equation
115,713,680.36 : 159,674,325.18 = 68,662,646.60 : x - Step 2: Convert to fraction form
115,713,680.36/159,674,325.18 = 68,662,646.60/x - Step 3: Cross multiply
115,713,680.36x = 159,674,325.18 × 68,662,646.60 - Step 4: Simplify right side
115,713,680.36x = 10,963,661,760,927,820 - Step 5: Solve for x
x = 10,963,661,760,927,820/115,713,680.36 - Step 6: Final answer
x = 94,748,189.90
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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.