Finding the Fourth Proportional to 115,459,967.10, 159,207,068.79 and 73,577,685.90
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Solution
The fourth proportional to 115,459,967.10, 159,207,068.79 and 73,577,685.90 is: 101,455,837.85
Step by Step Solution
- Step 1: Write the proportion equation
115,459,967.10 : 159,207,068.79 = 73,577,685.90 : x - Step 2: Convert to fraction form
115,459,967.10/159,207,068.79 = 73,577,685.90/x - Step 3: Cross multiply
115,459,967.10x = 159,207,068.79 × 73,577,685.90 - Step 4: Simplify right side
115,459,967.10x = 11,714,087,700,490,314 - Step 5: Solve for x
x = 11,714,087,700,490,314/115,459,967.10 - Step 6: Final answer
x = 101,455,837.85
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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.