Finding the Fourth Proportional to 98,430,440.36, 147,517,239.89 and 71,228,359.40
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Solution
The fourth proportional to 98,430,440.36, 147,517,239.89 and 71,228,359.40 is: 106,749,608.58
Step by Step Solution
- Step 1: Write the proportion equation
98,430,440.36 : 147,517,239.89 = 71,228,359.40 : x - Step 2: Convert to fraction form
98,430,440.36/147,517,239.89 = 71,228,359.40/x - Step 3: Cross multiply
98,430,440.36x = 147,517,239.89 × 71,228,359.40 - Step 4: Simplify right side
98,430,440.36x = 10,507,410,980,021,422 - Step 5: Solve for x
x = 10,507,410,980,021,422/98,430,440.36 - Step 6: Final answer
x = 106,749,608.58
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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.