Finding the Fourth Proportional to 68,121,133.56, 94,130,133.23 and 48,507,971.46
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Solution
The fourth proportional to 68,121,133.56, 94,130,133.23 and 48,507,971.46 is: 67,028,564.81
Step by Step Solution
- Step 1: Write the proportion equation
68,121,133.56 : 94,130,133.23 = 48,507,971.46 : x - Step 2: Convert to fraction form
68,121,133.56/94,130,133.23 = 48,507,971.46/x - Step 3: Cross multiply
68,121,133.56x = 94,130,133.23 × 48,507,971.46 - Step 4: Simplify right side
68,121,133.56x = 4,566,061,815,833,215 - Step 5: Solve for x
x = 4,566,061,815,833,215/68,121,133.56 - Step 6: Final answer
x = 67,028,564.81
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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.