Finding the Fourth Proportional to 130,160,991.24, 179,621,674.99 and 71,424,639.09
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Solution
The fourth proportional to 130,160,991.24, 179,621,674.99 and 71,424,639.09 is: 98,565,731.46
Step by Step Solution
- Step 1: Write the proportion equation
130,160,991.24 : 179,621,674.99 = 71,424,639.09 : x - Step 2: Convert to fraction form
130,160,991.24/179,621,674.99 = 71,424,639.09/x - Step 3: Cross multiply
130,160,991.24x = 179,621,674.99 × 71,424,639.09 - Step 4: Simplify right side
130,160,991.24x = 12,829,413,308,902,030 - Step 5: Solve for x
x = 12,829,413,308,902,030/130,160,991.24 - Step 6: Final answer
x = 98,565,731.46
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.