Finding the Fourth Proportional to 107,767,848.79, 161,753,972.19 and 66,703,070.57
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Solution
The fourth proportional to 107,767,848.79, 161,753,972.19 and 66,703,070.57 is: 100,117,862.09
Step by Step Solution
- Step 1: Write the proportion equation
107,767,848.79 : 161,753,972.19 = 66,703,070.57 : x - Step 2: Convert to fraction form
107,767,848.79/161,753,972.19 = 66,703,070.57/x - Step 3: Cross multiply
107,767,848.79x = 161,753,972.19 × 66,703,070.57 - Step 4: Simplify right side
107,767,848.79x = 10,789,486,622,836,496 - Step 5: Solve for x
x = 10,789,486,622,836,496/107,767,848.79 - Step 6: Final answer
x = 100,117,862.09
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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.