Finding the Fourth Proportional to 3,890,418,209.43, 5,835,628,156.09 and 1,403,278,931.09
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Solution
The fourth proportional to 3,890,418,209.43, 5,835,628,156.09 and 1,403,278,931.09 is: 2,104,918,700.33
Step by Step Solution
- Step 1: Write the proportion equation
3,890,418,209.43 : 5,835,628,156.09 = 1,403,278,931.09 : x - Step 2: Convert to fraction form
3,890,418,209.43/5,835,628,156.09 = 1,403,278,931.09/x - Step 3: Cross multiply
3,890,418,209.43x = 5,835,628,156.09 × 1,403,278,931.09 - Step 4: Simplify right side
3,890,418,209.43x = 8,189,014,041,116,682,240 - Step 5: Solve for x
x = 8,189,014,041,116,682,240/3,890,418,209.43 - Step 6: Final answer
x = 2,104,918,700.33
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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.