Finding the Fourth Proportional to 1,679,518,339.68, 2,518,990,380.72 and 452,399,813.28
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Solution
The fourth proportional to 1,679,518,339.68, 2,518,990,380.72 and 452,399,813.28 is: 678,522,378.09
Step by Step Solution
- Step 1: Write the proportion equation
1,679,518,339.68 : 2,518,990,380.72 = 452,399,813.28 : x - Step 2: Convert to fraction form
1,679,518,339.68/2,518,990,380.72 = 452,399,813.28/x - Step 3: Cross multiply
1,679,518,339.68x = 2,518,990,380.72 × 452,399,813.28 - Step 4: Simplify right side
1,679,518,339.68x = 1,139,590,777,891,843,968 - Step 5: Solve for x
x = 1,139,590,777,891,843,968/1,679,518,339.68 - Step 6: Final answer
x = 678,522,378.09
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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.