Finding the Fourth Proportional to 1,646,168,535.87, 2,271,715,805.12 and 977,247,732.75
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Solution
The fourth proportional to 1,646,168,535.87, 2,271,715,805.12 and 977,247,732.75 is: 1,348,603,786.08
Step by Step Solution
- Step 1: Write the proportion equation
1,646,168,535.87 : 2,271,715,805.12 = 977,247,732.75 : x - Step 2: Convert to fraction form
1,646,168,535.87/2,271,715,805.12 = 977,247,732.75/x - Step 3: Cross multiply
1,646,168,535.87x = 2,271,715,805.12 × 977,247,732.75 - Step 4: Simplify right side
1,646,168,535.87x = 2,220,029,120,000,974,336 - Step 5: Solve for x
x = 2,220,029,120,000,974,336/1,646,168,535.87 - Step 6: Final answer
x = 1,348,603,786.08
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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.