Finding the Fourth Proportional to 135,936,998.40, 203,905,497.60 and 38,898,496.20
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Solution
The fourth proportional to 135,936,998.40, 203,905,497.60 and 38,898,496.20 is: 58,347,744.30
Step by Step Solution
- Step 1: Write the proportion equation
135,936,998.40 : 203,905,497.60 = 38,898,496.20 : x - Step 2: Convert to fraction form
135,936,998.40/203,905,497.60 = 38,898,496.20/x - Step 3: Cross multiply
135,936,998.40x = 203,905,497.60 × 38,898,496.20 - Step 4: Simplify right side
135,936,998.40x = 7,931,617,223,552,709 - Step 5: Solve for x
x = 7,931,617,223,552,709/135,936,998.40 - Step 6: Final answer
x = 58,347,744.30
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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.