Finding the Fourth Proportional to 3,078,877,869.62, 4,249,016,433.41 and 1,722,430,853.53
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Solution
The fourth proportional to 3,078,877,869.62, 4,249,016,433.41 and 1,722,430,853.53 is: 2,377,046,869.67
Step by Step Solution
- Step 1: Write the proportion equation
3,078,877,869.62 : 4,249,016,433.41 = 1,722,430,853.53 : x - Step 2: Convert to fraction form
3,078,877,869.62/4,249,016,433.41 = 1,722,430,853.53/x - Step 3: Cross multiply
3,078,877,869.62x = 4,249,016,433.41 × 1,722,430,853.53 - Step 4: Simplify right side
3,078,877,869.62x = 7,318,637,002,061,382,656 - Step 5: Solve for x
x = 7,318,637,002,061,382,656/3,078,877,869.62 - Step 6: Final answer
x = 2,377,046,869.67
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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.