Finding the Fourth Proportional to 138,063,516.86, 190,531,695.99 and 75,343,656.26
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Solution
The fourth proportional to 138,063,516.86, 190,531,695.99 and 75,343,656.26 is: 103,976,451.83
Step by Step Solution
- Step 1: Write the proportion equation
138,063,516.86 : 190,531,695.99 = 75,343,656.26 : x - Step 2: Convert to fraction form
138,063,516.86/190,531,695.99 = 75,343,656.26/x - Step 3: Cross multiply
138,063,516.86x = 190,531,695.99 × 75,343,656.26 - Step 4: Simplify right side
138,063,516.86x = 14,355,354,610,064,250 - Step 5: Solve for x
x = 14,355,354,610,064,250/138,063,516.86 - Step 6: Final answer
x = 103,976,451.83
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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.