Finding the Fourth Proportional to 128,967,114.48, 193,414,761.78 and 42,712,246.98
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Solution
The fourth proportional to 128,967,114.48, 193,414,761.78 and 42,712,246.98 is: 64,056,477.56
Step by Step Solution
- Step 1: Write the proportion equation
128,967,114.48 : 193,414,761.78 = 42,712,246.98 : x - Step 2: Convert to fraction form
128,967,114.48/193,414,761.78 = 42,712,246.98/x - Step 3: Cross multiply
128,967,114.48x = 193,414,761.78 × 42,712,246.98 - Step 4: Simplify right side
128,967,114.48x = 8,261,179,074,725,224 - Step 5: Solve for x
x = 8,261,179,074,725,224/128,967,114.48 - Step 6: Final answer
x = 64,056,477.56
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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.