Finding the Fourth Proportional to 385,174,073.08, 531,541,251.12 and 208,962,068.44
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Solution
The fourth proportional to 385,174,073.08, 531,541,251.12 and 208,962,068.44 is: 288,368,213.38
Step by Step Solution
- Step 1: Write the proportion equation
385,174,073.08 : 531,541,251.12 = 208,962,068.44 : x - Step 2: Convert to fraction form
385,174,073.08/531,541,251.12 = 208,962,068.44/x - Step 3: Cross multiply
385,174,073.08x = 531,541,251.12 × 208,962,068.44 - Step 4: Simplify right side
385,174,073.08x = 111,071,959,295,220,672 - Step 5: Solve for x
x = 111,071,959,295,220,672/385,174,073.08 - Step 6: Final answer
x = 288,368,213.38
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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.