Finding the Fourth Proportional to 211,828,491.81, 292,402,615.19 and 159,057,642.60
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Solution
The fourth proportional to 211,828,491.81, 292,402,615.19 and 159,057,642.60 is: 219,559,088.88
Step by Step Solution
- Step 1: Write the proportion equation
211,828,491.81 : 292,402,615.19 = 159,057,642.60 : x - Step 2: Convert to fraction form
211,828,491.81/292,402,615.19 = 159,057,642.60/x - Step 3: Cross multiply
211,828,491.81x = 292,402,615.19 × 159,057,642.60 - Step 4: Simplify right side
211,828,491.81x = 46,508,870,661,401,064 - Step 5: Solve for x
x = 46,508,870,661,401,064/211,828,491.81 - Step 6: Final answer
x = 219,559,088.88
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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.