Finding the Fourth Proportional to 1,201,950,026.70, 1,803,046,812.21 and 414,901,098.06
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Solution
The fourth proportional to 1,201,950,026.70, 1,803,046,812.21 and 414,901,098.06 is: 622,393,681.62
Step by Step Solution
- Step 1: Write the proportion equation
1,201,950,026.70 : 1,803,046,812.21 = 414,901,098.06 : x - Step 2: Convert to fraction form
1,201,950,026.70/1,803,046,812.21 = 414,901,098.06/x - Step 3: Cross multiply
1,201,950,026.70x = 1,803,046,812.21 × 414,901,098.06 - Step 4: Simplify right side
1,201,950,026.70x = 748,086,102,239,511,680 - Step 5: Solve for x
x = 748,086,102,239,511,680/1,201,950,026.70 - Step 6: Final answer
x = 622,393,681.62
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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.