Finding the Fourth Proportional to 6,811,867,336.80, 10,215,887,817.60 and 2,155,168,718.40
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Solution
The fourth proportional to 6,811,867,336.80, 10,215,887,817.60 and 2,155,168,718.40 is: 3,232,147,774.84
Step by Step Solution
- Step 1: Write the proportion equation
6,811,867,336.80 : 10,215,887,817.60 = 2,155,168,718.40 : x - Step 2: Convert to fraction form
6,811,867,336.80/10,215,887,817.60 = 2,155,168,718.40/x - Step 3: Cross multiply
6,811,867,336.80x = 10,215,887,817.60 × 2,155,168,718.40 - Step 4: Simplify right side
6,811,867,336.80x = 22,016,961,855,175,168,000 - Step 5: Solve for x
x = 22,016,961,855,175,168,000/6,811,867,336.80 - Step 6: Final answer
x = 3,232,147,774.84
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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.