Finding the Fourth Proportional to 1,214,267,968.56, 1,675,690,357.24 and 657,351,015.62
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Solution
The fourth proportional to 1,214,267,968.56, 1,675,690,357.24 and 657,351,015.62 is: 907,144,705.05
Step by Step Solution
- Step 1: Write the proportion equation
1,214,267,968.56 : 1,675,690,357.24 = 657,351,015.62 : x - Step 2: Convert to fraction form
1,214,267,968.56/1,675,690,357.24 = 657,351,015.62/x - Step 3: Cross multiply
1,214,267,968.56x = 1,675,690,357.24 × 657,351,015.62 - Step 4: Simplify right side
1,214,267,968.56x = 1,101,516,758,196,354,688 - Step 5: Solve for x
x = 1,101,516,758,196,354,688/1,214,267,968.56 - Step 6: Final answer
x = 907,144,705.05
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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.