Finding the Fourth Proportional to 7,379,878.48, 11,069,892.14 and 2,587,683.20
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Solution
The fourth proportional to 7,379,878.48, 11,069,892.14 and 2,587,683.20 is: 3,881,550.89
Step by Step Solution
- Step 1: Write the proportion equation
7,379,878.48 : 11,069,892.14 = 2,587,683.20 : x - Step 2: Convert to fraction form
7,379,878.48/11,069,892.14 = 2,587,683.20/x - Step 3: Cross multiply
7,379,878.48x = 11,069,892.14 × 2,587,683.20 - Step 4: Simplify right side
7,379,878.48x = 28,645,373,916,490.05 - Step 5: Solve for x
x = 28,645,373,916,490.05/7,379,878.48 - Step 6: Final answer
x = 3,881,550.89
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.