Finding the Fourth Proportional to 138,234,287.18, 190,759,673.93 and 76,353,297.14
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Solution
The fourth proportional to 138,234,287.18, 190,759,673.93 and 76,353,297.14 is: 105,365,538.20
Step by Step Solution
- Step 1: Write the proportion equation
138,234,287.18 : 190,759,673.93 = 76,353,297.14 : x - Step 2: Convert to fraction form
138,234,287.18/190,759,673.93 = 76,353,297.14/x - Step 3: Cross multiply
138,234,287.18x = 190,759,673.93 × 76,353,297.14 - Step 4: Simplify right side
138,234,287.18x = 14,565,130,066,001,934 - Step 5: Solve for x
x = 14,565,130,066,001,934/138,234,287.18 - Step 6: Final answer
x = 105,365,538.20
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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.