Finding the Fourth Proportional to 1,940,229,304.80, 2,910,368,840.40 and 647,764,792.80
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Solution
The fourth proportional to 1,940,229,304.80, 2,910,368,840.40 and 647,764,792.80 is: 971,655,496.70
Step by Step Solution
- Step 1: Write the proportion equation
1,940,229,304.80 : 2,910,368,840.40 = 647,764,792.80 : x - Step 2: Convert to fraction form
1,940,229,304.80/2,910,368,840.40 = 647,764,792.80/x - Step 3: Cross multiply
1,940,229,304.80x = 2,910,368,840.40 × 647,764,792.80 - Step 4: Simplify right side
1,940,229,304.80x = 1,885,234,468,873,282,304 - Step 5: Solve for x
x = 1,885,234,468,873,282,304/1,940,229,304.80 - Step 6: Final answer
x = 971,655,496.70
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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.