Finding the Fourth Proportional to 1,519,065,984.80, 2,278,598,977.20 and 1,378,482,125.60
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Solution
The fourth proportional to 1,519,065,984.80, 2,278,598,977.20 and 1,378,482,125.60 is: 2,067,723,188.40
Step by Step Solution
- Step 1: Write the proportion equation
1,519,065,984.80 : 2,278,598,977.20 = 1,378,482,125.60 : x - Step 2: Convert to fraction form
1,519,065,984.80/2,278,598,977.20 = 1,378,482,125.60/x - Step 3: Cross multiply
1,519,065,984.80x = 2,278,598,977.20 × 1,378,482,125.60 - Step 4: Simplify right side
1,519,065,984.80x = 3,141,007,961,480,641,536 - Step 5: Solve for x
x = 3,141,007,961,480,641,536/1,519,065,984.80 - Step 6: Final answer
x = 2,067,723,188.40
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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.