Finding the Fourth Proportional to 169,115,405.80, 253,673,108.70 and 128,804,621.80
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Solution
The fourth proportional to 169,115,405.80, 253,673,108.70 and 128,804,621.80 is: 193,206,932.70
Step by Step Solution
- Step 1: Write the proportion equation
169,115,405.80 : 253,673,108.70 = 128,804,621.80 : x - Step 2: Convert to fraction form
169,115,405.80/253,673,108.70 = 128,804,621.80/x - Step 3: Cross multiply
169,115,405.80x = 253,673,108.70 × 128,804,621.80 - Step 4: Simplify right side
169,115,405.80x = 32,674,268,826,933,788 - Step 5: Solve for x
x = 32,674,268,826,933,788/169,115,405.80 - Step 6: Final answer
x = 193,206,932.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.