Finding the Fourth Proportional to 5,306,069,893.36, 7,954,911,146.04 and 2,648,762,172.40
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Solution
The fourth proportional to 5,306,069,893.36, 7,954,911,146.04 and 2,648,762,172.40 is: 3,971,049,788.62
Step by Step Solution
- Step 1: Write the proportion equation
5,306,069,893.36 : 7,954,911,146.04 = 2,648,762,172.40 : x - Step 2: Convert to fraction form
5,306,069,893.36/7,954,911,146.04 = 2,648,762,172.40/x - Step 3: Cross multiply
5,306,069,893.36x = 7,954,911,146.04 × 2,648,762,172.40 - Step 4: Simplify right side
5,306,069,893.36x = 21,070,667,728,433,885,184 - Step 5: Solve for x
x = 21,070,667,728,433,885,184/5,306,069,893.36 - Step 6: Final answer
x = 3,971,049,788.62
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.