Finding the Fourth Proportional to 1,621,795,754.64, 2,238,165,040.92 and 907,288,684.44
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Solution
The fourth proportional to 1,621,795,754.64, 2,238,165,040.92 and 907,288,684.44 is: 1,252,106,999.12
Step by Step Solution
- Step 1: Write the proportion equation
1,621,795,754.64 : 2,238,165,040.92 = 907,288,684.44 : x - Step 2: Convert to fraction form
1,621,795,754.64/2,238,165,040.92 = 907,288,684.44/x - Step 3: Cross multiply
1,621,795,754.64x = 2,238,165,040.92 × 907,288,684.44 - Step 4: Simplify right side
1,621,795,754.64x = 2,030,661,815,535,905,792 - Step 5: Solve for x
x = 2,030,661,815,535,905,792/1,621,795,754.64 - Step 6: Final answer
x = 1,252,106,999.12
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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.