Finding the Fourth Proportional to 2,235,854,717.91, 3,085,439,479.83 and 1,218,589,306.07
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Solution
The fourth proportional to 2,235,854,717.91, 3,085,439,479.83 and 1,218,589,306.07 is: 1,681,631,424.67
Step by Step Solution
- Step 1: Write the proportion equation
2,235,854,717.91 : 3,085,439,479.83 = 1,218,589,306.07 : x - Step 2: Convert to fraction form
2,235,854,717.91/3,085,439,479.83 = 1,218,589,306.07/x - Step 3: Cross multiply
2,235,854,717.91x = 3,085,439,479.83 × 1,218,589,306.07 - Step 4: Simplify right side
2,235,854,717.91x = 3,759,883,554,631,594,496 - Step 5: Solve for x
x = 3,759,883,554,631,594,496/2,235,854,717.91 - Step 6: Final answer
x = 1,681,631,424.67
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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.