Finding the Fourth Proportional to 3,785,421,327.60, 5,224,164,202.56 and 2,178,368,937.84
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Solution
The fourth proportional to 3,785,421,327.60, 5,224,164,202.56 and 2,178,368,937.84 is: 3,006,311,858.09
Step by Step Solution
- Step 1: Write the proportion equation
3,785,421,327.60 : 5,224,164,202.56 = 2,178,368,937.84 : x - Step 2: Convert to fraction form
3,785,421,327.60/5,224,164,202.56 = 2,178,368,937.84/x - Step 3: Cross multiply
3,785,421,327.60x = 5,224,164,202.56 × 2,178,368,937.84 - Step 4: Simplify right side
3,785,421,327.60x = 11,380,157,025,032,380,416 - Step 5: Solve for x
x = 11,380,157,025,032,380,416/3,785,421,327.60 - Step 6: Final answer
x = 3,006,311,858.09
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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.