Finding the Fourth Proportional to 4,119,421.58, 6,174,806.91 and 1,386,020.09
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Solution
The fourth proportional to 4,119,421.58, 6,174,806.91 and 1,386,020.09 is: 2,077,574.79
Step by Step Solution
- Step 1: Write the proportion equation
4,119,421.58 : 6,174,806.91 = 1,386,020.09 : x - Step 2: Convert to fraction form
4,119,421.58/6,174,806.91 = 1,386,020.09/x - Step 3: Cross multiply
4,119,421.58x = 6,174,806.91 × 1,386,020.09 - Step 4: Simplify right side
4,119,421.58x = 8,558,406,429,130.82 - Step 5: Solve for x
x = 8,558,406,429,130.82/4,119,421.58 - Step 6: Final answer
x = 2,077,574.79
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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.