Finding the Fourth Proportional to 4,128,574.86, 5,697,239.49 and 2,293,152.12
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Solution
The fourth proportional to 4,128,574.86, 5,697,239.49 and 2,293,152.12 is: 3,164,442.27
Step by Step Solution
- Step 1: Write the proportion equation
4,128,574.86 : 5,697,239.49 = 2,293,152.12 : x - Step 2: Convert to fraction form
4,128,574.86/5,697,239.49 = 2,293,152.12/x - Step 3: Cross multiply
4,128,574.86x = 5,697,239.49 × 2,293,152.12 - Step 4: Simplify right side
4,128,574.86x = 13,064,636,814,641.22 - Step 5: Solve for x
x = 13,064,636,814,641.22/4,128,574.86 - Step 6: Final answer
x = 3,164,442.27
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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.