Finding the Fourth Proportional to 1,337,897,251.80, 2,006,845,877.70 and 989,218,811.70
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Solution
The fourth proportional to 1,337,897,251.80, 2,006,845,877.70 and 989,218,811.70 is: 1,483,828,217.55
Step by Step Solution
- Step 1: Write the proportion equation
1,337,897,251.80 : 2,006,845,877.70 = 989,218,811.70 : x - Step 2: Convert to fraction form
1,337,897,251.80/2,006,845,877.70 = 989,218,811.70/x - Step 3: Cross multiply
1,337,897,251.80x = 2,006,845,877.70 × 989,218,811.70 - Step 4: Simplify right side
1,337,897,251.80x = 1,985,209,694,403,437,568 - Step 5: Solve for x
x = 1,985,209,694,403,437,568/1,337,897,251.80 - Step 6: Final answer
x = 1,483,828,217.55
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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.