Finding the Fourth Proportional to 256,919,695.68, 354,539,696.52 and 139,442,503.68
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Solution
The fourth proportional to 256,919,695.68, 354,539,696.52 and 139,442,503.68 is: 192,425,507.92
Step by Step Solution
- Step 1: Write the proportion equation
256,919,695.68 : 354,539,696.52 = 139,442,503.68 : x - Step 2: Convert to fraction form
256,919,695.68/354,539,696.52 = 139,442,503.68/x - Step 3: Cross multiply
256,919,695.68x = 354,539,696.52 × 139,442,503.68 - Step 4: Simplify right side
256,919,695.68x = 49,437,902,936,696,184 - Step 5: Solve for x
x = 49,437,902,936,696,184/256,919,695.68 - Step 6: Final answer
x = 192,425,507.92
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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.