Finding the Fourth Proportional to 1,780,737,927.68, 2,457,409,287.92 and 987,775,697.31
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Solution
The fourth proportional to 1,780,737,927.68, 2,457,409,287.92 and 987,775,697.31 is: 1,363,125,440.99
Step by Step Solution
- Step 1: Write the proportion equation
1,780,737,927.68 : 2,457,409,287.92 = 987,775,697.31 : x - Step 2: Convert to fraction form
1,780,737,927.68/2,457,409,287.92 = 987,775,697.31/x - Step 3: Cross multiply
1,780,737,927.68x = 2,457,409,287.92 × 987,775,697.31 - Step 4: Simplify right side
1,780,737,927.68x = 2,427,369,172,946,309,632 - Step 5: Solve for x
x = 2,427,369,172,946,309,632/1,780,737,927.68 - Step 6: Final answer
x = 1,363,125,440.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.