Finding the Fourth Proportional to 1,629,645,610.71, 2,248,965,204.41 and 915,306,854.57
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Solution
The fourth proportional to 1,629,645,610.71, 2,248,965,204.41 and 915,306,854.57 is: 1,263,153,935.89
Step by Step Solution
- Step 1: Write the proportion equation
1,629,645,610.71 : 2,248,965,204.41 = 915,306,854.57 : x - Step 2: Convert to fraction form
1,629,645,610.71/2,248,965,204.41 = 915,306,854.57/x - Step 3: Cross multiply
1,629,645,610.71x = 2,248,965,204.41 × 915,306,854.57 - Step 4: Simplify right side
1,629,645,610.71x = 2,058,493,267,270,073,088 - Step 5: Solve for x
x = 2,058,493,267,270,073,088/1,629,645,610.71 - Step 6: Final answer
x = 1,263,153,935.89
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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.