Finding the Fourth Proportional to 280,931,947.99, 420,558,341.93 and 169,931,697.80
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Solution
The fourth proportional to 280,931,947.99, 420,558,341.93 and 169,931,697.80 is: 254,389,696.79
Step by Step Solution
- Step 1: Write the proportion equation
280,931,947.99 : 420,558,341.93 = 169,931,697.80 : x - Step 2: Convert to fraction form
280,931,947.99/420,558,341.93 = 169,931,697.80/x - Step 3: Cross multiply
280,931,947.99x = 420,558,341.93 × 169,931,697.80 - Step 4: Simplify right side
280,931,947.99x = 71,466,193,065,802,616 - Step 5: Solve for x
x = 71,466,193,065,802,616/280,931,947.99 - Step 6: Final answer
x = 254,389,696.79
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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.