Finding the Fourth Proportional to 1,244,345,918.36, 1,865,215,079.60 and 579,812,064.48
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Solution
The fourth proportional to 1,244,345,918.36, 1,865,215,079.60 and 579,812,064.48 is: 869,110,582.55
Step by Step Solution
- Step 1: Write the proportion equation
1,244,345,918.36 : 1,865,215,079.60 = 579,812,064.48 : x - Step 2: Convert to fraction form
1,244,345,918.36/1,865,215,079.60 = 579,812,064.48/x - Step 3: Cross multiply
1,244,345,918.36x = 1,865,215,079.60 × 579,812,064.48 - Step 4: Simplify right side
1,244,345,918.36x = 1,081,474,205,999,204,480 - Step 5: Solve for x
x = 1,081,474,205,999,204,480/1,244,345,918.36 - Step 6: Final answer
x = 869,110,582.55
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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.