Finding the Fourth Proportional to 130,177,599.96, 179,641,041.08 and 71,438,754.81
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Solution
The fourth proportional to 130,177,599.96, 179,641,041.08 and 71,438,754.81 is: 98,583,260.80
Step by Step Solution
- Step 1: Write the proportion equation
130,177,599.96 : 179,641,041.08 = 71,438,754.81 : x - Step 2: Convert to fraction form
130,177,599.96/179,641,041.08 = 71,438,754.81/x - Step 3: Cross multiply
130,177,599.96x = 179,641,041.08 × 71,438,754.81 - Step 4: Simplify right side
130,177,599.96x = 12,833,332,287,170,064 - Step 5: Solve for x
x = 12,833,332,287,170,064/130,177,599.96 - Step 6: Final answer
x = 98,583,260.80
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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.