Finding the Fourth Proportional to 7,643,890.24, 11,466,237.12 and 1,964,152.96
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Solution
The fourth proportional to 7,643,890.24, 11,466,237.12 and 1,964,152.96 is: 2,946,332.68
Step by Step Solution
- Step 1: Write the proportion equation
7,643,890.24 : 11,466,237.12 = 1,964,152.96 : x - Step 2: Convert to fraction form
7,643,890.24/11,466,237.12 = 1,964,152.96/x - Step 3: Cross multiply
7,643,890.24x = 11,466,237.12 × 1,964,152.96 - Step 4: Simplify right side
7,643,890.24x = 22,521,443,579,309.88 - Step 5: Solve for x
x = 22,521,443,579,309.88/7,643,890.24 - Step 6: Final answer
x = 2,946,332.68
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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.