Finding the Fourth Proportional to 257,268,948.30, 355,033,396.49 and 139,794,276.11
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Solution
The fourth proportional to 257,268,948.30, 355,033,396.49 and 139,794,276.11 is: 192,917,322.45
Step by Step Solution
- Step 1: Write the proportion equation
257,268,948.30 : 355,033,396.49 = 139,794,276.11 : x - Step 2: Convert to fraction form
257,268,948.30/355,033,396.49 = 139,794,276.11/x - Step 3: Cross multiply
257,268,948.30x = 355,033,396.49 × 139,794,276.11 - Step 4: Simplify right side
257,268,948.30x = 49,631,636,654,720,024 - Step 5: Solve for x
x = 49,631,636,654,720,024/257,268,948.30 - Step 6: Final answer
x = 192,917,322.45
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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.