Finding the Fourth Proportional to 138,124,102.72, 190,565,993.68 and 98,437,884.88
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Solution
The fourth proportional to 138,124,102.72, 190,565,993.68 and 98,437,884.88 is: 135,812,019.62
Step by Step Solution
- Step 1: Write the proportion equation
138,124,102.72 : 190,565,993.68 = 98,437,884.88 : x - Step 2: Convert to fraction form
138,124,102.72/190,565,993.68 = 98,437,884.88/x - Step 3: Cross multiply
138,124,102.72x = 190,565,993.68 × 98,437,884.88 - Step 4: Simplify right side
138,124,102.72x = 18,758,913,347,914,648 - Step 5: Solve for x
x = 18,758,913,347,914,648/138,124,102.72 - Step 6: Final answer
x = 135,812,019.62
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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.