Finding the Fourth Proportional to 143,266,027.74, 197,705,227.06 and 79,685,938.14
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Solution
The fourth proportional to 143,266,027.74, 197,705,227.06 and 79,685,938.14 is: 109,965,542.72
Step by Step Solution
- Step 1: Write the proportion equation
143,266,027.74 : 197,705,227.06 = 79,685,938.14 : x - Step 2: Convert to fraction form
143,266,027.74/197,705,227.06 = 79,685,938.14/x - Step 3: Cross multiply
143,266,027.74x = 197,705,227.06 × 79,685,938.14 - Step 4: Simplify right side
143,266,027.74x = 15,754,326,493,457,814 - Step 5: Solve for x
x = 15,754,326,493,457,814/143,266,027.74 - Step 6: Final answer
x = 109,965,542.72
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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.