Finding the Fourth Proportional to 117,422,246.80, 176,133,370.20 and 86,811,245.20
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Solution
The fourth proportional to 117,422,246.80, 176,133,370.20 and 86,811,245.20 is: 130,216,867.80
Step by Step Solution
- Step 1: Write the proportion equation
117,422,246.80 : 176,133,370.20 = 86,811,245.20 : x - Step 2: Convert to fraction form
117,422,246.80/176,133,370.20 = 86,811,245.20/x - Step 3: Cross multiply
117,422,246.80x = 176,133,370.20 × 86,811,245.20 - Step 4: Simplify right side
117,422,246.80x = 15,290,357,188,334,572 - Step 5: Solve for x
x = 15,290,357,188,334,572/117,422,246.80 - Step 6: Final answer
x = 130,216,867.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.