Finding the Fourth Proportional to 256,810,916.16, 385,135,455.06 and 84,247,518.24
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Solution
The fourth proportional to 256,810,916.16, 385,135,455.06 and 84,247,518.24 is: 126,344,731.60
Step by Step Solution
- Step 1: Write the proportion equation
256,810,916.16 : 385,135,455.06 = 84,247,518.24 : x - Step 2: Convert to fraction form
256,810,916.16/385,135,455.06 = 84,247,518.24/x - Step 3: Cross multiply
256,810,916.16x = 385,135,455.06 × 84,247,518.24 - Step 4: Simplify right side
256,810,916.16x = 32,446,706,275,038,048 - Step 5: Solve for x
x = 32,446,706,275,038,048/256,810,916.16 - Step 6: Final answer
x = 126,344,731.60
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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.