Finding the Fourth Proportional to 1,625,933,004.63, 2,243,787,543.12 and 921,084,985.14
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Solution
The fourth proportional to 1,625,933,004.63, 2,243,787,543.12 and 921,084,985.14 is: 1,271,097,277.64
Step by Step Solution
- Step 1: Write the proportion equation
1,625,933,004.63 : 2,243,787,543.12 = 921,084,985.14 : x - Step 2: Convert to fraction form
1,625,933,004.63/2,243,787,543.12 = 921,084,985.14/x - Step 3: Cross multiply
1,625,933,004.63x = 2,243,787,543.12 × 921,084,985.14 - Step 4: Simplify right side
1,625,933,004.63x = 2,066,719,015,812,002,048 - Step 5: Solve for x
x = 2,066,719,015,812,002,048/1,625,933,004.63 - Step 6: Final answer
x = 1,271,097,277.64
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.