Finding the Fourth Proportional to 750,420,643.11, 1,035,580,585.71 and 415,914,761.87
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Solution
The fourth proportional to 750,420,643.11, 1,035,580,585.71 and 415,914,761.87 is: 573,962,425.82
Step by Step Solution
- Step 1: Write the proportion equation
750,420,643.11 : 1,035,580,585.71 = 415,914,761.87 : x - Step 2: Convert to fraction form
750,420,643.11/1,035,580,585.71 = 415,914,761.87/x - Step 3: Cross multiply
750,420,643.11x = 1,035,580,585.71 × 415,914,761.87 - Step 4: Simplify right side
750,420,643.11x = 430,713,252,702,769,792 - Step 5: Solve for x
x = 430,713,252,702,769,792/750,420,643.11 - Step 6: Final answer
x = 573,962,425.82
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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.