Finding the Fourth Proportional to 219,921,358.49, 303,473,405.72 and 120,796,983.17
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Solution
The fourth proportional to 219,921,358.49, 303,473,405.72 and 120,796,983.17 is: 166,689,911.95
Step by Step Solution
- Step 1: Write the proportion equation
219,921,358.49 : 303,473,405.72 = 120,796,983.17 : x - Step 2: Convert to fraction form
219,921,358.49/303,473,405.72 = 120,796,983.17/x - Step 3: Cross multiply
219,921,358.49x = 303,473,405.72 × 120,796,983.17 - Step 4: Simplify right side
219,921,358.49x = 36,658,671,883,301,424 - Step 5: Solve for x
x = 36,658,671,883,301,424/219,921,358.49 - Step 6: Final answer
x = 166,689,911.95
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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.