Finding the Fourth Proportional to 28,495,021.65, 39,323,163.50 and 15,442,280.49
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Solution
The fourth proportional to 28,495,021.65, 39,323,163.50 and 15,442,280.49 is: 21,310,365.30
Step by Step Solution
- Step 1: Write the proportion equation
28,495,021.65 : 39,323,163.50 = 15,442,280.49 : x - Step 2: Convert to fraction form
28,495,021.65/39,323,163.50 = 15,442,280.49/x - Step 3: Cross multiply
28,495,021.65x = 39,323,163.50 × 15,442,280.49 - Step 4: Simplify right side
28,495,021.65x = 607,239,320,521,130.12 - Step 5: Solve for x
x = 607,239,320,521,130.12/28,495,021.65 - Step 6: Final answer
x = 21,310,365.30
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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.