Finding the Fourth Proportional to 1,260,092,121.80, 1,889,571,312.30 and 483,479,673.80
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Solution
The fourth proportional to 1,260,092,121.80, 1,889,571,312.30 and 483,479,673.80 is: 725,002,010.48
Step by Step Solution
- Step 1: Write the proportion equation
1,260,092,121.80 : 1,889,571,312.30 = 483,479,673.80 : x - Step 2: Convert to fraction form
1,260,092,121.80/1,889,571,312.30 = 483,479,673.80/x - Step 3: Cross multiply
1,260,092,121.80x = 1,889,571,312.30 × 483,479,673.80 - Step 4: Simplify right side
1,260,092,121.80x = 913,569,321,692,641,920 - Step 5: Solve for x
x = 913,569,321,692,641,920/1,260,092,121.80 - Step 6: Final answer
x = 725,002,010.48
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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.