Finding the Fourth Proportional to 1,889,571,817.80, 2,834,357,726.70 and 1,297,759,120.20
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Solution
The fourth proportional to 1,889,571,817.80, 2,834,357,726.70 and 1,297,759,120.20 is: 1,946,638,680.30
Step by Step Solution
- Step 1: Write the proportion equation
1,889,571,817.80 : 2,834,357,726.70 = 1,297,759,120.20 : x - Step 2: Convert to fraction form
1,889,571,817.80/2,834,357,726.70 = 1,297,759,120.20/x - Step 3: Cross multiply
1,889,571,817.80x = 2,834,357,726.70 × 1,297,759,120.20 - Step 4: Simplify right side
1,889,571,817.80x = 3,678,313,589,734,263,808 - Step 5: Solve for x
x = 3,678,313,589,734,263,808/1,889,571,817.80 - Step 6: Final answer
x = 1,946,638,680.30
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.