Finding the Fourth Proportional to 2,115,321,564.28, 2,916,067,184.15 and 1,478,264,194.28
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Solution
The fourth proportional to 2,115,321,564.28, 2,916,067,184.15 and 1,478,264,194.28 is: 2,037,854,565.10
Step by Step Solution
- Step 1: Write the proportion equation
2,115,321,564.28 : 2,916,067,184.15 = 1,478,264,194.28 : x - Step 2: Convert to fraction form
2,115,321,564.28/2,916,067,184.15 = 1,478,264,194.28/x - Step 3: Cross multiply
2,115,321,564.28x = 2,916,067,184.15 × 1,478,264,194.28 - Step 4: Simplify right side
2,115,321,564.28x = 4,310,717,706,421,876,736 - Step 5: Solve for x
x = 4,310,717,706,421,876,736/2,115,321,564.28 - Step 6: Final answer
x = 2,037,854,565.10
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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.