Finding the Fourth Proportional to 287,330,788.06, 396,516,472.38 and 155,171,771.91
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Solution
The fourth proportional to 287,330,788.06, 396,516,472.38 and 155,171,771.91 is: 214,137,037.06
Step by Step Solution
- Step 1: Write the proportion equation
287,330,788.06 : 396,516,472.38 = 155,171,771.91 : x - Step 2: Convert to fraction form
287,330,788.06/396,516,472.38 = 155,171,771.91/x - Step 3: Cross multiply
287,330,788.06x = 396,516,472.38 × 155,171,771.91 - Step 4: Simplify right side
287,330,788.06x = 61,528,163,610,707,176 - Step 5: Solve for x
x = 61,528,163,610,707,176/287,330,788.06 - Step 6: Final answer
x = 214,137,037.06
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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.