Finding the Fourth Proportional to 368,135,000.57, 508,025,947.24 and 203,122,578.17
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Solution
The fourth proportional to 368,135,000.57, 508,025,947.24 and 203,122,578.17 is: 280,308,962.80
Step by Step Solution
- Step 1: Write the proportion equation
368,135,000.57 : 508,025,947.24 = 203,122,578.17 : x - Step 2: Convert to fraction form
368,135,000.57/508,025,947.24 = 203,122,578.17/x - Step 3: Cross multiply
368,135,000.57x = 508,025,947.24 × 203,122,578.17 - Step 4: Simplify right side
368,135,000.57x = 103,191,540,182,169,168 - Step 5: Solve for x
x = 103,191,540,182,169,168/368,135,000.57 - Step 6: Final answer
x = 280,308,962.80
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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.