Finding the Fourth Proportional to 216,739,734.24, 299,101,616.31 and 117,620,460.10
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Solution
The fourth proportional to 216,739,734.24, 299,101,616.31 and 117,620,460.10 is: 162,316,659.89
Step by Step Solution
- Step 1: Write the proportion equation
216,739,734.24 : 299,101,616.31 = 117,620,460.10 : x - Step 2: Convert to fraction form
216,739,734.24/299,101,616.31 = 117,620,460.10/x - Step 3: Cross multiply
216,739,734.24x = 299,101,616.31 × 117,620,460.10 - Step 4: Simplify right side
216,739,734.24x = 35,180,469,727,035,864 - Step 5: Solve for x
x = 35,180,469,727,035,864/216,739,734.24 - Step 6: Final answer
x = 162,316,659.89
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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.