Finding the Fourth Proportional to 249,525,711.20, 374,313,579.60 and 85,741,896.80
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Solution
The fourth proportional to 249,525,711.20, 374,313,579.60 and 85,741,896.80 is: 128,621,440.09
Step by Step Solution
- Step 1: Write the proportion equation
249,525,711.20 : 374,313,579.60 = 85,741,896.80 : x - Step 2: Convert to fraction form
249,525,711.20/374,313,579.60 = 85,741,896.80/x - Step 3: Cross multiply
249,525,711.20x = 374,313,579.60 × 85,741,896.80 - Step 4: Simplify right side
249,525,711.20x = 32,094,356,312,901,788 - Step 5: Solve for x
x = 32,094,356,312,901,788/249,525,711.20 - Step 6: Final answer
x = 128,621,440.09
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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.