Finding the Fourth Proportional to 7,425,683.74, 10,248,494.20 and 4,118,709.09
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Solution
The fourth proportional to 7,425,683.74, 10,248,494.20 and 4,118,709.09 is: 5,684,401.29
Step by Step Solution
- Step 1: Write the proportion equation
7,425,683.74 : 10,248,494.20 = 4,118,709.09 : x - Step 2: Convert to fraction form
7,425,683.74/10,248,494.20 = 4,118,709.09/x - Step 3: Cross multiply
7,425,683.74x = 10,248,494.20 × 4,118,709.09 - Step 4: Simplify right side
7,425,683.74x = 42,210,566,214,007.31 - Step 5: Solve for x
x = 42,210,566,214,007.31/7,425,683.74 - Step 6: Final answer
x = 5,684,401.29
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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.