Finding the Fourth Proportional to 6,786,215,645.20, 10,179,323,467.80 and 1,878,889,451.20
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Solution
The fourth proportional to 6,786,215,645.20, 10,179,323,467.80 and 1,878,889,451.20 is: 2,818,334,176.80
Step by Step Solution
- Step 1: Write the proportion equation
6,786,215,645.20 : 10,179,323,467.80 = 1,878,889,451.20 : x - Step 2: Convert to fraction form
6,786,215,645.20/10,179,323,467.80 = 1,878,889,451.20/x - Step 3: Cross multiply
6,786,215,645.20x = 10,179,323,467.80 × 1,878,889,451.20 - Step 4: Simplify right side
6,786,215,645.20x = 19,125,823,484,002,021,376 - Step 5: Solve for x
x = 19,125,823,484,002,021,376/6,786,215,645.20 - Step 6: Final answer
x = 2,818,334,176.80
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Double scale
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Similar ratio
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1.5x scale
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.