Finding the Fourth Proportional to 107,683,483.20, 161,548,844.40 and 53,122,207.20
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Solution
The fourth proportional to 107,683,483.20, 161,548,844.40 and 53,122,207.20 is: 79,694,962.78
Step by Step Solution
- Step 1: Write the proportion equation
107,683,483.20 : 161,548,844.40 = 53,122,207.20 : x - Step 2: Convert to fraction form
107,683,483.20/161,548,844.40 = 53,122,207.20/x - Step 3: Cross multiply
107,683,483.20x = 161,548,844.40 × 53,122,207.20 - Step 4: Simplify right side
107,683,483.20x = 8,581,831,185,137,360 - Step 5: Solve for x
x = 8,581,831,185,137,360/107,683,483.20 - Step 6: Final answer
x = 79,694,962.78
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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.