Finding the Fourth Proportional to 293,640,237.99, 405,108,839.57 and 168,125,353.71
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Solution
The fourth proportional to 293,640,237.99, 405,108,839.57 and 168,125,353.71 is: 231,947,322.37
Step by Step Solution
- Step 1: Write the proportion equation
293,640,237.99 : 405,108,839.57 = 168,125,353.71 : x - Step 2: Convert to fraction form
293,640,237.99/405,108,839.57 = 168,125,353.71/x - Step 3: Cross multiply
293,640,237.99x = 405,108,839.57 × 168,125,353.71 - Step 4: Simplify right side
293,640,237.99x = 68,109,066,942,913,272 - Step 5: Solve for x
x = 68,109,066,942,913,272/293,640,237.99 - Step 6: Final answer
x = 231,947,322.37
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1.5x scale
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.