Finding the Fourth Proportional to 2,018,715,869.36, 3,028,549,438.54 and 690,758,366.95
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Solution
The fourth proportional to 2,018,715,869.36, 3,028,549,438.54 and 690,758,366.95 is: 1,036,300,301.66
Step by Step Solution
- Step 1: Write the proportion equation
2,018,715,869.36 : 3,028,549,438.54 = 690,758,366.95 : x - Step 2: Convert to fraction form
2,018,715,869.36/3,028,549,438.54 = 690,758,366.95/x - Step 3: Cross multiply
2,018,715,869.36x = 3,028,549,438.54 × 690,758,366.95 - Step 4: Simplify right side
2,018,715,869.36x = 2,091,995,864,379,196,160 - Step 5: Solve for x
x = 2,091,995,864,379,196,160/2,018,715,869.36 - Step 6: Final answer
x = 1,036,300,301.66
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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.