Finding the Fourth Proportional to 6,243,267,393.84, 9,361,161,225.86 and 1,987,120,353.48
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Solution
The fourth proportional to 6,243,267,393.84, 9,361,161,225.86 and 1,987,120,353.48 is: 2,979,490,198.11
Step by Step Solution
- Step 1: Write the proportion equation
6,243,267,393.84 : 9,361,161,225.86 = 1,987,120,353.48 : x - Step 2: Convert to fraction form
6,243,267,393.84/9,361,161,225.86 = 1,987,120,353.48/x - Step 3: Cross multiply
6,243,267,393.84x = 9,361,161,225.86 × 1,987,120,353.48 - Step 4: Simplify right side
6,243,267,393.84x = 18,601,754,004,104,257,536 - Step 5: Solve for x
x = 18,601,754,004,104,257,536/6,243,267,393.84 - Step 6: Final answer
x = 2,979,490,198.11
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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.