Finding the Fourth Proportional to 1,539,921,620.40, 2,309,882,430.60 and 1,177,124,564.40
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Solution
The fourth proportional to 1,539,921,620.40, 2,309,882,430.60 and 1,177,124,564.40 is: 1,765,686,846.60
Step by Step Solution
- Step 1: Write the proportion equation
1,539,921,620.40 : 2,309,882,430.60 = 1,177,124,564.40 : x - Step 2: Convert to fraction form
1,539,921,620.40/2,309,882,430.60 = 1,177,124,564.40/x - Step 3: Cross multiply
1,539,921,620.40x = 2,309,882,430.60 × 1,177,124,564.40 - Step 4: Simplify right side
1,539,921,620.40x = 2,719,019,349,935,238,144 - Step 5: Solve for x
x = 2,719,019,349,935,238,144/1,539,921,620.40 - Step 6: Final answer
x = 1,765,686,846.60
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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.