Finding the Fourth Proportional to 3,157,893,377.24, 4,357,720,212.78 and 1,728,688,002.36
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Solution
The fourth proportional to 3,157,893,377.24, 4,357,720,212.78 and 1,728,688,002.36 is: 2,385,494,932.72
Step by Step Solution
- Step 1: Write the proportion equation
3,157,893,377.24 : 4,357,720,212.78 = 1,728,688,002.36 : x - Step 2: Convert to fraction form
3,157,893,377.24/4,357,720,212.78 = 1,728,688,002.36/x - Step 3: Cross multiply
3,157,893,377.24x = 4,357,720,212.78 × 1,728,688,002.36 - Step 4: Simplify right side
3,157,893,377.24x = 7,533,138,649,474,451,456 - Step 5: Solve for x
x = 7,533,138,649,474,451,456/3,157,893,377.24 - Step 6: Final answer
x = 2,385,494,932.72
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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.