Finding the Fourth Proportional to 138,063,516.18, 190,531,695.05 and 75,343,655.58
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Solution
The fourth proportional to 138,063,516.18, 190,531,695.05 and 75,343,655.58 is: 103,976,450.88
Step by Step Solution
- Step 1: Write the proportion equation
138,063,516.18 : 190,531,695.05 = 75,343,655.58 : x - Step 2: Convert to fraction form
138,063,516.18/190,531,695.05 = 75,343,655.58/x - Step 3: Cross multiply
138,063,516.18x = 190,531,695.05 × 75,343,655.58 - Step 4: Simplify right side
138,063,516.18x = 14,355,354,408,920,792 - Step 5: Solve for x
x = 14,355,354,408,920,792/138,063,516.18 - Step 6: Final answer
x = 103,976,450.88
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.