Finding the Fourth Proportional to 192,721,137.38, 265,955,509.53 and 104,615,196.08
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Solution
The fourth proportional to 192,721,137.38, 265,955,509.53 and 104,615,196.08 is: 144,369,155.12
Step by Step Solution
- Step 1: Write the proportion equation
192,721,137.38 : 265,955,509.53 = 104,615,196.08 : x - Step 2: Convert to fraction form
192,721,137.38/265,955,509.53 = 104,615,196.08/x - Step 3: Cross multiply
192,721,137.38x = 265,955,509.53 × 104,615,196.08 - Step 4: Simplify right side
192,721,137.38x = 27,822,987,778,037,260 - Step 5: Solve for x
x = 27,822,987,778,037,260/192,721,137.38 - Step 6: Final answer
x = 144,369,155.12
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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.