Finding the Fourth Proportional to 143,514,668.97, 197,988,116.27 and 87,762,526.65
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Solution
The fourth proportional to 143,514,668.97, 197,988,116.27 and 87,762,526.65 is: 121,074,294.74
Step by Step Solution
- Step 1: Write the proportion equation
143,514,668.97 : 197,988,116.27 = 87,762,526.65 : x - Step 2: Convert to fraction form
143,514,668.97/197,988,116.27 = 87,762,526.65/x - Step 3: Cross multiply
143,514,668.97x = 197,988,116.27 × 87,762,526.65 - Step 4: Simplify right side
143,514,668.97x = 17,375,937,330,090,360 - Step 5: Solve for x
x = 17,375,937,330,090,360/143,514,668.97 - Step 6: Final answer
x = 121,074,294.74
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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.