Finding the Fourth Proportional to 2,381,172,369.44, 3,286,201,899.30 and 1,428,588,955.18
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Solution
The fourth proportional to 2,381,172,369.44, 3,286,201,899.30 and 1,428,588,955.18 is: 1,971,563,166.98
Step by Step Solution
- Step 1: Write the proportion equation
2,381,172,369.44 : 3,286,201,899.30 = 1,428,588,955.18 : x - Step 2: Convert to fraction form
2,381,172,369.44/3,286,201,899.30 = 1,428,588,955.18/x - Step 3: Cross multiply
2,381,172,369.44x = 3,286,201,899.30 × 1,428,588,955.18 - Step 4: Simplify right side
2,381,172,369.44x = 4,694,631,737,815,088,128 - Step 5: Solve for x
x = 4,694,631,737,815,088,128/2,381,172,369.44 - Step 6: Final answer
x = 1,971,563,166.98
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1.5x scale
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.