Finding the Fourth Proportional to 143,392,830.97, 197,870,787.87 and 80,656,438.91
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Solution
The fourth proportional to 143,392,830.97, 197,870,787.87 and 80,656,438.91 is: 111,299,518.99
Step by Step Solution
- Step 1: Write the proportion equation
143,392,830.97 : 197,870,787.87 = 80,656,438.91 : x - Step 2: Convert to fraction form
143,392,830.97/197,870,787.87 = 80,656,438.91/x - Step 3: Cross multiply
143,392,830.97x = 197,870,787.87 × 80,656,438.91 - Step 4: Simplify right side
143,392,830.97x = 15,959,553,113,910,224 - Step 5: Solve for x
x = 15,959,553,113,910,224/143,392,830.97 - Step 6: Final answer
x = 111,299,518.99
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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.