Finding the Fourth Proportional to 1,528,949,905.97, 2,293,052,178.96 and 423,526,053.92
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Solution
The fourth proportional to 1,528,949,905.97, 2,293,052,178.96 and 423,526,053.92 is: 635,185,846.83
Step by Step Solution
- Step 1: Write the proportion equation
1,528,949,905.97 : 2,293,052,178.96 = 423,526,053.92 : x - Step 2: Convert to fraction form
1,528,949,905.97/2,293,052,178.96 = 423,526,053.92/x - Step 3: Cross multiply
1,528,949,905.97x = 2,293,052,178.96 × 423,526,053.92 - Step 4: Simplify right side
1,528,949,905.97x = 971,167,340,776,121,216 - Step 5: Solve for x
x = 971,167,340,776,121,216/1,528,949,905.97 - Step 6: Final answer
x = 635,185,846.83
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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.