Finding the Fourth Proportional to 2,125,771,867.80, 3,188,657,801.70 and 2,039,678,425.80
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Solution
The fourth proportional to 2,125,771,867.80, 3,188,657,801.70 and 2,039,678,425.80 is: 3,059,517,638.70
Step by Step Solution
- Step 1: Write the proportion equation
2,125,771,867.80 : 3,188,657,801.70 = 2,039,678,425.80 : x - Step 2: Convert to fraction form
2,125,771,867.80/3,188,657,801.70 = 2,039,678,425.80/x - Step 3: Cross multiply
2,125,771,867.80x = 3,188,657,801.70 × 2,039,678,425.80 - Step 4: Simplify right side
2,125,771,867.80x = 6,503,836,525,386,344,448 - Step 5: Solve for x
x = 6,503,836,525,386,344,448/2,125,771,867.80 - Step 6: Final answer
x = 3,059,517,638.70
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1.5x scale
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.