Finding the Fourth Proportional to 1,625,933,014.66, 2,243,787,556.95 and 921,084,995.17
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Solution
The fourth proportional to 1,625,933,014.66, 2,243,787,556.95 and 921,084,995.17 is: 1,271,097,291.48
Step by Step Solution
- Step 1: Write the proportion equation
1,625,933,014.66 : 2,243,787,556.95 = 921,084,995.17 : x - Step 2: Convert to fraction form
1,625,933,014.66/2,243,787,556.95 = 921,084,995.17/x - Step 3: Cross multiply
1,625,933,014.66x = 2,243,787,556.95 × 921,084,995.17 - Step 4: Simplify right side
1,625,933,014.66x = 2,066,719,051,055,796,480 - Step 5: Solve for x
x = 2,066,719,051,055,796,480/1,625,933,014.66 - Step 6: Final answer
x = 1,271,097,291.48
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1.5x scale
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.