Finding the Fourth Proportional to 258,299,853.49, 387,449,809.40 and 104,946,013.81
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Solution
The fourth proportional to 258,299,853.49, 387,449,809.40 and 104,946,013.81 is: 157,419,032.56
Step by Step Solution
- Step 1: Write the proportion equation
258,299,853.49 : 387,449,809.40 = 104,946,013.81 : x - Step 2: Convert to fraction form
258,299,853.49/387,449,809.40 = 104,946,013.81/x - Step 3: Cross multiply
258,299,853.49x = 387,449,809.40 × 104,946,013.81 - Step 4: Simplify right side
258,299,853.49x = 40,661,313,047,974,264 - Step 5: Solve for x
x = 40,661,313,047,974,264/258,299,853.49 - Step 6: Final answer
x = 157,419,032.56
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.