Finding the Fourth Proportional to 1,665,753,646.13, 2,498,605,246.73 and 405,229,630.92
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Solution
The fourth proportional to 1,665,753,646.13, 2,498,605,246.73 and 405,229,630.92 is: 607,838,310.49
Step by Step Solution
- Step 1: Write the proportion equation
1,665,753,646.13 : 2,498,605,246.73 = 405,229,630.92 : x - Step 2: Convert to fraction form
1,665,753,646.13/2,498,605,246.73 = 405,229,630.92/x - Step 3: Cross multiply
1,665,753,646.13x = 2,498,605,246.73 × 405,229,630.92 - Step 4: Simplify right side
1,665,753,646.13x = 1,012,508,881,958,785,920 - Step 5: Solve for x
x = 1,012,508,881,958,785,920/1,665,753,646.13 - Step 6: Final answer
x = 607,838,310.49
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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.