Finding the Fourth Proportional to 172,440,485.36, 258,658,291.80 and 80,272,672.74
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Solution
The fourth proportional to 172,440,485.36, 258,658,291.80 and 80,272,672.74 is: 120,407,875.02
Step by Step Solution
- Step 1: Write the proportion equation
172,440,485.36 : 258,658,291.80 = 80,272,672.74 : x - Step 2: Convert to fraction form
172,440,485.36/258,658,291.80 = 80,272,672.74/x - Step 3: Cross multiply
172,440,485.36x = 258,658,291.80 × 80,272,672.74 - Step 4: Simplify right side
172,440,485.36x = 20,763,192,409,148,824 - Step 5: Solve for x
x = 20,763,192,409,148,824/172,440,485.36 - Step 6: Final answer
x = 120,407,875.02
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.