Finding the Fourth Proportional to 7,641,646.08, 10,545,558.66 and 4,378,395.30
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Solution
The fourth proportional to 7,641,646.08, 10,545,558.66 and 4,378,395.30 is: 6,042,235.40
Step by Step Solution
- Step 1: Write the proportion equation
7,641,646.08 : 10,545,558.66 = 4,378,395.30 : x - Step 2: Convert to fraction form
7,641,646.08/10,545,558.66 = 4,378,395.30/x - Step 3: Cross multiply
7,641,646.08x = 10,545,558.66 × 4,378,395.30 - Step 4: Simplify right side
7,641,646.08x = 46,172,624,472,818.30 - Step 5: Solve for x
x = 46,172,624,472,818.30/7,641,646.08 - Step 6: Final answer
x = 6,042,235.40
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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.