Finding the Fourth Proportional to 2,690,141,385.51, 3,713,133,588.97 and 1,561,474,765.65
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Solution
The fourth proportional to 2,690,141,385.51, 3,713,133,588.97 and 1,561,474,765.65 is: 2,155,263,820.67
Step by Step Solution
- Step 1: Write the proportion equation
2,690,141,385.51 : 3,713,133,588.97 = 1,561,474,765.65 : x - Step 2: Convert to fraction form
2,690,141,385.51/3,713,133,588.97 = 1,561,474,765.65/x - Step 3: Cross multiply
2,690,141,385.51x = 3,713,133,588.97 × 1,561,474,765.65 - Step 4: Simplify right side
2,690,141,385.51x = 5,797,964,400,664,074,240 - Step 5: Solve for x
x = 5,797,964,400,664,074,240/2,690,141,385.51 - Step 6: Final answer
x = 2,155,263,820.67
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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.