Finding the Fourth Proportional to 172,368,645.60, 258,552,968.40 and 158,259,871.20
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Solution
The fourth proportional to 172,368,645.60, 258,552,968.40 and 158,259,871.20 is: 237,389,806.80
Step by Step Solution
- Step 1: Write the proportion equation
172,368,645.60 : 258,552,968.40 = 158,259,871.20 : x - Step 2: Convert to fraction form
172,368,645.60/258,552,968.40 = 158,259,871.20/x - Step 3: Cross multiply
172,368,645.60x = 258,552,968.40 × 158,259,871.20 - Step 4: Simplify right side
172,368,645.60x = 40,918,559,477,361,664 - Step 5: Solve for x
x = 40,918,559,477,361,664/172,368,645.60 - Step 6: Final answer
x = 237,389,806.80
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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.