Finding the Fourth Proportional to 1,990,656,245.60, 2,985,984,368.40 and 1,021,405,839.20
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Solution
The fourth proportional to 1,990,656,245.60, 2,985,984,368.40 and 1,021,405,839.20 is: 1,532,108,758.80
Step by Step Solution
- Step 1: Write the proportion equation
1,990,656,245.60 : 2,985,984,368.40 = 1,021,405,839.20 : x - Step 2: Convert to fraction form
1,990,656,245.60/2,985,984,368.40 = 1,021,405,839.20/x - Step 3: Cross multiply
1,990,656,245.60x = 2,985,984,368.40 × 1,021,405,839.20 - Step 4: Simplify right side
1,990,656,245.60x = 3,049,901,869,643,684,352 - Step 5: Solve for x
x = 3,049,901,869,643,684,352/1,990,656,245.60 - Step 6: Final answer
x = 1,532,108,758.80
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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.