Finding the Fourth Proportional to 278,337,177.37, 417,503,107.59 and 169,192,483.21
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Solution
The fourth proportional to 278,337,177.37, 417,503,107.59 and 169,192,483.21 is: 253,787,108.82
Step by Step Solution
- Step 1: Write the proportion equation
278,337,177.37 : 417,503,107.59 = 169,192,483.21 : x - Step 2: Convert to fraction form
278,337,177.37/417,503,107.59 = 169,192,483.21/x - Step 3: Cross multiply
278,337,177.37x = 417,503,107.59 × 169,192,483.21 - Step 4: Simplify right side
278,337,177.37x = 70,638,387,521,043,896 - Step 5: Solve for x
x = 70,638,387,521,043,896/278,337,177.37 - Step 6: Final answer
x = 253,787,108.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.