Finding the Fourth Proportional to 947,439,270.48, 1,307,378,449.98 and 524,043,819.75
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Solution
The fourth proportional to 947,439,270.48, 1,307,378,449.98 and 524,043,819.75 is: 723,131,939.04
Step by Step Solution
- Step 1: Write the proportion equation
947,439,270.48 : 1,307,378,449.98 = 524,043,819.75 : x - Step 2: Convert to fraction form
947,439,270.48/1,307,378,449.98 = 524,043,819.75/x - Step 3: Cross multiply
947,439,270.48x = 1,307,378,449.98 × 524,043,819.75 - Step 4: Simplify right side
947,439,270.48x = 685,123,596,786,353,536 - Step 5: Solve for x
x = 685,123,596,786,353,536/947,439,270.48 - Step 6: Final answer
x = 723,131,939.04
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1.5x scale
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.