Finding the Fourth Proportional to 257,768,979.75, 355,729,004.28 and 140,302,804.05
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Solution
The fourth proportional to 257,768,979.75, 355,729,004.28 and 140,302,804.05 is: 193,622,121.76
Step by Step Solution
- Step 1: Write the proportion equation
257,768,979.75 : 355,729,004.28 = 140,302,804.05 : x - Step 2: Convert to fraction form
257,768,979.75/355,729,004.28 = 140,302,804.05/x - Step 3: Cross multiply
257,768,979.75x = 355,729,004.28 × 140,302,804.05 - Step 4: Simplify right side
257,768,979.75x = 49,909,776,782,398,448 - Step 5: Solve for x
x = 49,909,776,782,398,448/257,768,979.75 - Step 6: Final answer
x = 193,622,121.76
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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.