Finding the Fourth Proportional to 1,747,358,761.80, 2,621,038,142.70 and 829,028,713.80
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Solution
The fourth proportional to 1,747,358,761.80, 2,621,038,142.70 and 829,028,713.80 is: 1,243,543,070.70
Step by Step Solution
- Step 1: Write the proportion equation
1,747,358,761.80 : 2,621,038,142.70 = 829,028,713.80 : x - Step 2: Convert to fraction form
1,747,358,761.80/2,621,038,142.70 = 829,028,713.80/x - Step 3: Cross multiply
1,747,358,761.80x = 2,621,038,142.70 × 829,028,713.80 - Step 4: Simplify right side
1,747,358,761.80x = 2,172,915,880,263,321,600 - Step 5: Solve for x
x = 2,172,915,880,263,321,600/1,747,358,761.80 - Step 6: Final answer
x = 1,243,543,070.70
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1.5x scale
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.