Finding the Fourth Proportional to 408,406,517.36, 612,904,877.91 and 162,621,504.12
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Solution
The fourth proportional to 408,406,517.36, 612,904,877.91 and 162,621,504.12 is: 244,049,761.43
Step by Step Solution
- Step 1: Write the proportion equation
408,406,517.36 : 612,904,877.91 = 162,621,504.12 : x - Step 2: Convert to fraction form
408,406,517.36/612,904,877.91 = 162,621,504.12/x - Step 3: Cross multiply
408,406,517.36x = 612,904,877.91 × 162,621,504.12 - Step 4: Simplify right side
408,406,517.36x = 99,671,513,128,209,152 - Step 5: Solve for x
x = 99,671,513,128,209,152/408,406,517.36 - Step 6: Final answer
x = 244,049,761.43
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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.