Finding the Fourth Proportional to 28,634,972, 39,516,267.84 and 15,757,916
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Solution
The fourth proportional to 28,634,972, 39,516,267.84 and 15,757,916 is: 21,745,927.65
Step by Step Solution
- Step 1: Write the proportion equation
28,634,972 : 39,516,267.84 = 15,757,916 : x - Step 2: Convert to fraction form
28,634,972/39,516,267.84 = 15,757,916/x - Step 3: Cross multiply
28,634,972x = 39,516,267.84 × 15,757,916 - Step 4: Simplify right side
28,634,972x = 622,694,029,256,221.50 - Step 5: Solve for x
x = 622,694,029,256,221.50/28,634,972 - Step 6: Final answer
x = 21,745,927.65
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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.