Finding the Fourth Proportional to 420,722,327.94, 580,599,730.89 and 235,091,167.62
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Solution
The fourth proportional to 420,722,327.94, 580,599,730.89 and 235,091,167.62 is: 324,427,442.02
Step by Step Solution
- Step 1: Write the proportion equation
420,722,327.94 : 580,599,730.89 = 235,091,167.62 : x - Step 2: Convert to fraction form
420,722,327.94/580,599,730.89 = 235,091,167.62/x - Step 3: Cross multiply
420,722,327.94x = 580,599,730.89 × 235,091,167.62 - Step 4: Simplify right side
420,722,327.94x = 136,493,868,654,787,888 - Step 5: Solve for x
x = 136,493,868,654,787,888/420,722,327.94 - Step 6: Final answer
x = 324,427,442.02
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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.