Finding the Fourth Proportional to 786,834,033.16, 1,085,926,180.71 and 447,824,933.77
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Solution
The fourth proportional to 786,834,033.16, 1,085,926,180.71 and 447,824,933.77 is: 618,052,599.99
Step by Step Solution
- Step 1: Write the proportion equation
786,834,033.16 : 1,085,926,180.71 = 447,824,933.77 : x - Step 2: Convert to fraction form
786,834,033.16/1,085,926,180.71 = 447,824,933.77/x - Step 3: Cross multiply
786,834,033.16x = 1,085,926,180.71 × 447,824,933.77 - Step 4: Simplify right side
786,834,033.16x = 486,304,819,955,564,800 - Step 5: Solve for x
x = 486,304,819,955,564,800/786,834,033.16 - Step 6: Final answer
x = 618,052,599.99
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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.