Finding the Fourth Proportional to 558,813,890.36, 771,128,422.08 and 307,904,241.03
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Solution
The fourth proportional to 558,813,890.36, 771,128,422.08 and 307,904,241.03 is: 424,888,707.38
Step by Step Solution
- Step 1: Write the proportion equation
558,813,890.36 : 771,128,422.08 = 307,904,241.03 : x - Step 2: Convert to fraction form
558,813,890.36/771,128,422.08 = 307,904,241.03/x - Step 3: Cross multiply
558,813,890.36x = 771,128,422.08 × 307,904,241.03 - Step 4: Simplify right side
558,813,890.36x = 237,433,711,540,529,504 - Step 5: Solve for x
x = 237,433,711,540,529,504/558,813,890.36 - Step 6: Final answer
x = 424,888,707.38
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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.