Finding the Fourth Proportional to 646,841,444.30, 893,377,512.78 and 434,780,108.99
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Solution
The fourth proportional to 646,841,444.30, 893,377,512.78 and 434,780,108.99 is: 600,491,474.08
Step by Step Solution
- Step 1: Write the proportion equation
646,841,444.30 : 893,377,512.78 = 434,780,108.99 : x - Step 2: Convert to fraction form
646,841,444.30/893,377,512.78 = 434,780,108.99/x - Step 3: Cross multiply
646,841,444.30x = 893,377,512.78 × 434,780,108.99 - Step 4: Simplify right side
646,841,444.30x = 388,422,772,380,424,960 - Step 5: Solve for x
x = 388,422,772,380,424,960/646,841,444.30 - Step 6: Final answer
x = 600,491,474.08
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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.