Finding the Fourth Proportional to 1,625,933,007.51, 2,243,787,547.11 and 921,084,988.02
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Solution
The fourth proportional to 1,625,933,007.51, 2,243,787,547.11 and 921,084,988.02 is: 1,271,097,281.62
Step by Step Solution
- Step 1: Write the proportion equation
1,625,933,007.51 : 2,243,787,547.11 = 921,084,988.02 : x - Step 2: Convert to fraction form
1,625,933,007.51/2,243,787,547.11 = 921,084,988.02/x - Step 3: Cross multiply
1,625,933,007.51x = 2,243,787,547.11 × 921,084,988.02 - Step 4: Simplify right side
1,625,933,007.51x = 2,066,719,025,949,239,552 - Step 5: Solve for x
x = 2,066,719,025,949,239,552/1,625,933,007.51 - Step 6: Final answer
x = 1,271,097,281.62
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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.