Finding the Fourth Proportional to 1,224,780,029.20, 1,837,170,043.80 and 880,406,261.20
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Solution
The fourth proportional to 1,224,780,029.20, 1,837,170,043.80 and 880,406,261.20 is: 1,320,609,391.80
Step by Step Solution
- Step 1: Write the proportion equation
1,224,780,029.20 : 1,837,170,043.80 = 880,406,261.20 : x - Step 2: Convert to fraction form
1,224,780,029.20/1,837,170,043.80 = 880,406,261.20/x - Step 3: Cross multiply
1,224,780,029.20x = 1,837,170,043.80 × 880,406,261.20 - Step 4: Simplify right side
1,224,780,029.20x = 1,617,456,009,450,598,400 - Step 5: Solve for x
x = 1,617,456,009,450,598,400/1,224,780,029.20 - Step 6: Final answer
x = 1,320,609,391.80
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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.