Finding the Fourth Proportional to 2,589,019,403.20, 3,884,032,989.60 and 748,832,113.60
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Solution
The fourth proportional to 2,589,019,403.20, 3,884,032,989.60 and 748,832,113.60 is: 1,123,393,910.95
Step by Step Solution
- Step 1: Write the proportion equation
2,589,019,403.20 : 3,884,032,989.60 = 748,832,113.60 : x - Step 2: Convert to fraction form
2,589,019,403.20/3,884,032,989.60 = 748,832,113.60/x - Step 3: Cross multiply
2,589,019,403.20x = 3,884,032,989.60 × 748,832,113.60 - Step 4: Simplify right side
2,589,019,403.20x = 2,908,488,632,894,295,040 - Step 5: Solve for x
x = 2,908,488,632,894,295,040/2,589,019,403.20 - Step 6: Final answer
x = 1,123,393,910.95
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.