Finding the Fourth Proportional to 1,665,114,098.17, 2,497,675,405.28 and 421,544,695.09
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Solution
The fourth proportional to 1,665,114,098.17, 2,497,675,405.28 and 421,544,695.09 is: 632,318,120.60
Step by Step Solution
- Step 1: Write the proportion equation
1,665,114,098.17 : 2,497,675,405.28 = 421,544,695.09 : x - Step 2: Convert to fraction form
1,665,114,098.17/2,497,675,405.28 = 421,544,695.09/x - Step 3: Cross multiply
1,665,114,098.17x = 2,497,675,405.28 × 421,544,695.09 - Step 4: Simplify right side
1,665,114,098.17x = 1,052,881,817,144,197,888 - Step 5: Solve for x
x = 1,052,881,817,144,197,888/1,665,114,098.17 - Step 6: Final answer
x = 632,318,120.60
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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.