Finding the Fourth Proportional to 702,042,208.12, 968,848,701.26 and 388,776,422.12
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Solution
The fourth proportional to 702,042,208.12, 968,848,701.26 and 388,776,422.12 is: 536,528,327.35
Step by Step Solution
- Step 1: Write the proportion equation
702,042,208.12 : 968,848,701.26 = 388,776,422.12 : x - Step 2: Convert to fraction form
702,042,208.12/968,848,701.26 = 388,776,422.12/x - Step 3: Cross multiply
702,042,208.12x = 968,848,701.26 × 388,776,422.12 - Step 4: Simplify right side
702,042,208.12x = 376,665,531,651,471,552 - Step 5: Solve for x
x = 376,665,531,651,471,552/702,042,208.12 - Step 6: Final answer
x = 536,528,327.35
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1.5x scale
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.