Finding the Fourth Proportional to 516,515,973.44, 712,766,281.92 and 293,468,192.96
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Solution
The fourth proportional to 516,515,973.44, 712,766,281.92 and 293,468,192.96 is: 404,971,469.45
Step by Step Solution
- Step 1: Write the proportion equation
516,515,973.44 : 712,766,281.92 = 293,468,192.96 : x - Step 2: Convert to fraction form
516,515,973.44/712,766,281.92 = 293,468,192.96/x - Step 3: Cross multiply
516,515,973.44x = 712,766,281.92 × 293,468,192.96 - Step 4: Simplify right side
516,515,973.44x = 209,174,232,757,880,288 - Step 5: Solve for x
x = 209,174,232,757,880,288/516,515,973.44 - Step 6: Final answer
x = 404,971,469.45
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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.