Finding the Fourth Proportional to 1,267,691,313.16, 1,749,380,256.87 and 731,824,893.16
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Solution
The fourth proportional to 1,267,691,313.16, 1,749,380,256.87 and 731,824,893.16 is: 1,009,898,865.99
Step by Step Solution
- Step 1: Write the proportion equation
1,267,691,313.16 : 1,749,380,256.87 = 731,824,893.16 : x - Step 2: Convert to fraction form
1,267,691,313.16/1,749,380,256.87 = 731,824,893.16/x - Step 3: Cross multiply
1,267,691,313.16x = 1,749,380,256.87 × 731,824,893.16 - Step 4: Simplify right side
1,267,691,313.16x = 1,280,240,019,580,100,864 - Step 5: Solve for x
x = 1,280,240,019,580,100,864/1,267,691,313.16 - Step 6: Final answer
x = 1,009,898,865.99
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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.