Finding the Fourth Proportional to 4,031,979.26, 5,564,128.91 and 2,221,143.26
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Solution
The fourth proportional to 4,031,979.26, 5,564,128.91 and 2,221,143.26 is: 3,065,176.33
Step by Step Solution
- Step 1: Write the proportion equation
4,031,979.26 : 5,564,128.91 = 2,221,143.26 : x - Step 2: Convert to fraction form
4,031,979.26/5,564,128.91 = 2,221,143.26/x - Step 3: Cross multiply
4,031,979.26x = 5,564,128.91 × 2,221,143.26 - Step 4: Simplify right side
4,031,979.26x = 12,358,727,387,291.29 - Step 5: Solve for x
x = 12,358,727,387,291.29/4,031,979.26 - Step 6: Final answer
x = 3,065,176.33
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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.