Finding the Fourth Proportional to 2,557,558,392.10, 3,529,393,326.21 and 1,428,544,220.74
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Solution
The fourth proportional to 2,557,558,392.10, 3,529,393,326.21 and 1,428,544,220.74 is: 1,971,370,215.61
Step by Step Solution
- Step 1: Write the proportion equation
2,557,558,392.10 : 3,529,393,326.21 = 1,428,544,220.74 : x - Step 2: Convert to fraction form
2,557,558,392.10/3,529,393,326.21 = 1,428,544,220.74/x - Step 3: Cross multiply
2,557,558,392.10x = 3,529,393,326.21 × 1,428,544,220.74 - Step 4: Simplify right side
2,557,558,392.10x = 5,041,894,438,871,940,096 - Step 5: Solve for x
x = 5,041,894,438,871,940,096/2,557,558,392.10 - Step 6: Final answer
x = 1,971,370,215.61
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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.