Finding the Fourth Proportional to 235,716,818.49, 325,237,907.70 and 142,920,134.01
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Solution
The fourth proportional to 235,716,818.49, 325,237,907.70 and 142,920,134.01 is: 197,198,679.55
Step by Step Solution
- Step 1: Write the proportion equation
235,716,818.49 : 325,237,907.70 = 142,920,134.01 : x - Step 2: Convert to fraction form
235,716,818.49/325,237,907.70 = 142,920,134.01/x - Step 3: Cross multiply
235,716,818.49x = 325,237,907.70 × 142,920,134.01 - Step 4: Simplify right side
235,716,818.49x = 46,483,045,353,616,008 - Step 5: Solve for x
x = 46,483,045,353,616,008/235,716,818.49 - Step 6: Final answer
x = 197,198,679.55
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.