Finding the Fourth Proportional to 1,544,463,992.80, 2,316,695,989.20 and 818,869,880.80
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Solution
The fourth proportional to 1,544,463,992.80, 2,316,695,989.20 and 818,869,880.80 is: 1,228,304,821.20
Step by Step Solution
- Step 1: Write the proportion equation
1,544,463,992.80 : 2,316,695,989.20 = 818,869,880.80 : x - Step 2: Convert to fraction form
1,544,463,992.80/2,316,695,989.20 = 818,869,880.80/x - Step 3: Cross multiply
1,544,463,992.80x = 2,316,695,989.20 × 818,869,880.80 - Step 4: Simplify right side
1,544,463,992.80x = 1,897,072,568,526,041,856 - Step 5: Solve for x
x = 1,897,072,568,526,041,856/1,544,463,992.80 - Step 6: Final answer
x = 1,228,304,821.20
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1.5x scale
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.