Finding the Fourth Proportional to 6,307,421.65, 8,708,022.95 and 4,135,753.19
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Solution
The fourth proportional to 6,307,421.65, 8,708,022.95 and 4,135,753.19 is: 5,709,818.64
Step by Step Solution
- Step 1: Write the proportion equation
6,307,421.65 : 8,708,022.95 = 4,135,753.19 : x - Step 2: Convert to fraction form
6,307,421.65/8,708,022.95 = 4,135,753.19/x - Step 3: Cross multiply
6,307,421.65x = 8,708,022.95 × 4,135,753.19 - Step 4: Simplify right side
6,307,421.65x = 36,014,233,694,055.70 - Step 5: Solve for x
x = 36,014,233,694,055.70/6,307,421.65 - Step 6: Final answer
x = 5,709,818.64
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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.