Finding the Fourth Proportional to 198,430,658.16, 273,849,646.43 and 119,048,707.05
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Solution
The fourth proportional to 198,430,658.16, 273,849,646.43 and 119,048,707.05 is: 164,296,417.88
Step by Step Solution
- Step 1: Write the proportion equation
198,430,658.16 : 273,849,646.43 = 119,048,707.05 : x - Step 2: Convert to fraction form
198,430,658.16/273,849,646.43 = 119,048,707.05/x - Step 3: Cross multiply
198,430,658.16x = 273,849,646.43 × 119,048,707.05 - Step 4: Simplify right side
198,430,658.16x = 32,601,446,333,631,352 - Step 5: Solve for x
x = 32,601,446,333,631,352/198,430,658.16 - Step 6: Final answer
x = 164,296,417.88
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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.