Finding the Fourth Proportional to 384,024,312.75, 529,784,671.32 and 225,173,353.80
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Solution
The fourth proportional to 384,024,312.75, 529,784,671.32 and 225,173,353.80 is: 310,640,204.99
Step by Step Solution
- Step 1: Write the proportion equation
384,024,312.75 : 529,784,671.32 = 225,173,353.80 : x - Step 2: Convert to fraction form
384,024,312.75/529,784,671.32 = 225,173,353.80/x - Step 3: Cross multiply
384,024,312.75x = 529,784,671.32 × 225,173,353.80 - Step 4: Simplify right side
384,024,312.75x = 119,293,391,232,955,072 - Step 5: Solve for x
x = 119,293,391,232,955,072/384,024,312.75 - Step 6: Final answer
x = 310,640,204.99
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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.