Finding the Fourth Proportional to 921,235,482.30, 1,381,853,223.45 and 299,449,512.30
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Solution
The fourth proportional to 921,235,482.30, 1,381,853,223.45 and 299,449,512.30 is: 449,174,268.45
Step by Step Solution
- Step 1: Write the proportion equation
921,235,482.30 : 1,381,853,223.45 = 299,449,512.30 : x - Step 2: Convert to fraction form
921,235,482.30/1,381,853,223.45 = 299,449,512.30/x - Step 3: Cross multiply
921,235,482.30x = 1,381,853,223.45 × 299,449,512.30 - Step 4: Simplify right side
921,235,482.30x = 413,795,273,832,285,440 - Step 5: Solve for x
x = 413,795,273,832,285,440/921,235,482.30 - Step 6: Final answer
x = 449,174,268.45
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Similar ratio
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1.5x scale
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.