Finding the Fourth Proportional to 2,120,437,172.48, 3,180,536,129.28 and 939,677,573.12
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Solution
The fourth proportional to 2,120,437,172.48, 3,180,536,129.28 and 939,677,573.12 is: 1,409,463,345.56
Step by Step Solution
- Step 1: Write the proportion equation
2,120,437,172.48 : 3,180,536,129.28 = 939,677,573.12 : x - Step 2: Convert to fraction form
2,120,437,172.48/3,180,536,129.28 = 939,677,573.12/x - Step 3: Cross multiply
2,120,437,172.48x = 3,180,536,129.28 × 939,677,573.12 - Step 4: Simplify right side
2,120,437,172.48x = 2,988,678,471,182,309,376 - Step 5: Solve for x
x = 2,988,678,471,182,309,376/2,120,437,172.48 - Step 6: Final answer
x = 1,409,463,345.56
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.