Finding the Fourth Proportional to 128,750,416.11, 177,680,246.64 and 73,756,901.43
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Solution
The fourth proportional to 128,750,416.11, 177,680,246.64 and 73,756,901.43 is: 101,787,200.64
Step by Step Solution
- Step 1: Write the proportion equation
128,750,416.11 : 177,680,246.64 = 73,756,901.43 : x - Step 2: Convert to fraction form
128,750,416.11/177,680,246.64 = 73,756,901.43/x - Step 3: Cross multiply
128,750,416.11x = 177,680,246.64 × 73,756,901.43 - Step 4: Simplify right side
128,750,416.11x = 13,105,144,437,484,568 - Step 5: Solve for x
x = 13,105,144,437,484,568/128,750,416.11 - Step 6: Final answer
x = 101,787,200.64
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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.