Finding the Fourth Proportional to 159,449,212.80, 239,173,819.20 and 38,280,664.80
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Solution
The fourth proportional to 159,449,212.80, 239,173,819.20 and 38,280,664.80 is: 57,420,997.20
Step by Step Solution
- Step 1: Write the proportion equation
159,449,212.80 : 239,173,819.20 = 38,280,664.80 : x - Step 2: Convert to fraction form
159,449,212.80/239,173,819.20 = 38,280,664.80/x - Step 3: Cross multiply
159,449,212.80x = 239,173,819.20 × 38,280,664.80 - Step 4: Simplify right side
159,449,212.80x = 9,155,732,801,731,002 - Step 5: Solve for x
x = 9,155,732,801,731,002/159,449,212.80 - Step 6: Final answer
x = 57,420,997.20
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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.