Finding the Fourth Proportional to 151,466,614.47, 209,014,919.71 and 87,882,027.84
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Solution
The fourth proportional to 151,466,614.47, 209,014,919.71 and 87,882,027.84 is: 121,271,971.76
Step by Step Solution
- Step 1: Write the proportion equation
151,466,614.47 : 209,014,919.71 = 87,882,027.84 : x - Step 2: Convert to fraction form
151,466,614.47/209,014,919.71 = 87,882,027.84/x - Step 3: Cross multiply
151,466,614.47x = 209,014,919.71 × 87,882,027.84 - Step 4: Simplify right side
151,466,614.47x = 18,368,654,992,929,588 - Step 5: Solve for x
x = 18,368,654,992,929,588/151,466,614.47 - Step 6: Final answer
x = 121,271,971.76
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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.