Finding the Fourth Proportional to 129,038,526.40, 193,557,789.60 and 106,363,710.40
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Solution
The fourth proportional to 129,038,526.40, 193,557,789.60 and 106,363,710.40 is: 159,545,565.60
Step by Step Solution
- Step 1: Write the proportion equation
129,038,526.40 : 193,557,789.60 = 106,363,710.40 : x - Step 2: Convert to fraction form
129,038,526.40/193,557,789.60 = 106,363,710.40/x - Step 3: Cross multiply
129,038,526.40x = 193,557,789.60 × 106,363,710.40 - Step 4: Simplify right side
129,038,526.40x = 20,587,524,678,678,532 - Step 5: Solve for x
x = 20,587,524,678,678,532/129,038,526.40 - Step 6: Final answer
x = 159,545,565.60
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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.