Finding the Fourth Proportional to 1,214,267,965.77, 1,675,690,353.41 and 657,351,012.84
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Solution
The fourth proportional to 1,214,267,965.77, 1,675,690,353.41 and 657,351,012.84 is: 907,144,701.23
Step by Step Solution
- Step 1: Write the proportion equation
1,214,267,965.77 : 1,675,690,353.41 = 657,351,012.84 : x - Step 2: Convert to fraction form
1,214,267,965.77/1,675,690,353.41 = 657,351,012.84/x - Step 3: Cross multiply
1,214,267,965.77x = 1,675,690,353.41 × 657,351,012.84 - Step 4: Simplify right side
1,214,267,965.77x = 1,101,516,751,020,281,216 - Step 5: Solve for x
x = 1,101,516,751,020,281,216/1,214,267,965.77 - Step 6: Final answer
x = 907,144,701.23
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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.