Finding the Fourth Proportional to 1,127,726,238.63, 1,556,135,991.54 and 625,956,170.88
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Solution
The fourth proportional to 1,127,726,238.63, 1,556,135,991.54 and 625,956,170.88 is: 863,749,457.33
Step by Step Solution
- Step 1: Write the proportion equation
1,127,726,238.63 : 1,556,135,991.54 = 625,956,170.88 : x - Step 2: Convert to fraction form
1,127,726,238.63/1,556,135,991.54 = 625,956,170.88/x - Step 3: Cross multiply
1,127,726,238.63x = 1,556,135,991.54 × 625,956,170.88 - Step 4: Simplify right side
1,127,726,238.63x = 974,072,926,632,930,432 - Step 5: Solve for x
x = 974,072,926,632,930,432/1,127,726,238.63 - Step 6: Final answer
x = 863,749,457.33
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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.