Finding the Fourth Proportional to 78,796,874.23, 118,241,369.71 and 56,915,676.79
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Solution
The fourth proportional to 78,796,874.23, 118,241,369.71 and 56,915,676.79 is: 85,406,783.55
Step by Step Solution
- Step 1: Write the proportion equation
78,796,874.23 : 118,241,369.71 = 56,915,676.79 : x - Step 2: Convert to fraction form
78,796,874.23/118,241,369.71 = 56,915,676.79/x - Step 3: Cross multiply
78,796,874.23x = 118,241,369.71 × 56,915,676.79 - Step 4: Simplify right side
78,796,874.23x = 6,729,787,581,183,363 - Step 5: Solve for x
x = 6,729,787,581,183,363/78,796,874.23 - Step 6: Final answer
x = 85,406,783.55
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.