Finding the Fourth Proportional to 197,422,137.84, 272,726,337.24 and 157,677,486.96
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Solution
The fourth proportional to 197,422,137.84, 272,726,337.24 and 157,677,486.96 is: 217,821,587.56
Step by Step Solution
- Step 1: Write the proportion equation
197,422,137.84 : 272,726,337.24 = 157,677,486.96 : x - Step 2: Convert to fraction form
197,422,137.84/272,726,337.24 = 157,677,486.96/x - Step 3: Cross multiply
197,422,137.84x = 272,726,337.24 × 157,677,486.96 - Step 4: Simplify right side
197,422,137.84x = 43,002,803,483,808,664 - Step 5: Solve for x
x = 43,002,803,483,808,664/197,422,137.84 - Step 6: Final answer
x = 217,821,587.56
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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.