Finding the Fourth Proportional to 258,863,593.49, 388,349,924.01 and 83,972,971.58
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Solution
The fourth proportional to 258,863,593.49, 388,349,924.01 and 83,972,971.58 is: 125,977,147.62
Step by Step Solution
- Step 1: Write the proportion equation
258,863,593.49 : 388,349,924.01 = 83,972,971.58 : x - Step 2: Convert to fraction form
258,863,593.49/388,349,924.01 = 83,972,971.58/x - Step 3: Cross multiply
258,863,593.49x = 388,349,924.01 × 83,972,971.58 - Step 4: Simplify right side
258,863,593.49x = 32,610,897,130,871,300 - Step 5: Solve for x
x = 32,610,897,130,871,300/258,863,593.49 - Step 6: Final answer
x = 125,977,147.62
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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.