Finding the Fourth Proportional to 28,340,563.91, 39,108,719.97 and 15,782,266.26
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Solution
The fourth proportional to 28,340,563.91, 39,108,719.97 and 15,782,266.26 is: 21,778,826.76
Step by Step Solution
- Step 1: Write the proportion equation
28,340,563.91 : 39,108,719.97 = 15,782,266.26 : x - Step 2: Convert to fraction form
28,340,563.91/39,108,719.97 = 15,782,266.26/x - Step 3: Cross multiply
28,340,563.91x = 39,108,719.97 × 15,782,266.26 - Step 4: Simplify right side
28,340,563.91x = 617,224,231,654,319.12 - Step 5: Solve for x
x = 617,224,231,654,319.12/28,340,563.91 - Step 6: Final answer
x = 21,778,826.76
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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.