Finding the Fourth Proportional to 143,266,030.24, 197,705,230.51 and 79,685,940.64
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Solution
The fourth proportional to 143,266,030.24, 197,705,230.51 and 79,685,940.64 is: 109,965,546.17
Step by Step Solution
- Step 1: Write the proportion equation
143,266,030.24 : 197,705,230.51 = 79,685,940.64 : x - Step 2: Convert to fraction form
143,266,030.24/197,705,230.51 = 79,685,940.64/x - Step 3: Cross multiply
143,266,030.24x = 197,705,230.51 × 79,685,940.64 - Step 4: Simplify right side
143,266,030.24x = 15,754,327,262,637,376 - Step 5: Solve for x
x = 15,754,327,262,637,376/143,266,030.24 - Step 6: Final answer
x = 109,965,546.17
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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.