Finding the Fourth Proportional to 3,315,213,509.92, 4,574,971,370.11 and 1,809,839,860.75
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Solution
The fourth proportional to 3,315,213,509.92, 4,574,971,370.11 and 1,809,839,860.75 is: 2,497,566,302.33
Step by Step Solution
- Step 1: Write the proportion equation
3,315,213,509.92 : 4,574,971,370.11 = 1,809,839,860.75 : x - Step 2: Convert to fraction form
3,315,213,509.92/4,574,971,370.11 = 1,809,839,860.75/x - Step 3: Cross multiply
3,315,213,509.92x = 4,574,971,370.11 × 1,809,839,860.75 - Step 4: Simplify right side
3,315,213,509.92x = 8,279,965,547,415,118,848 - Step 5: Solve for x
x = 8,279,965,547,415,118,848/3,315,213,509.92 - Step 6: Final answer
x = 2,497,566,302.33
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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.