Finding the Fourth Proportional to 2,721,869,731.20, 4,082,804,596.80 and 783,172,963.20
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Solution
The fourth proportional to 2,721,869,731.20, 4,082,804,596.80 and 783,172,963.20 is: 1,174,759,444.80
Step by Step Solution
- Step 1: Write the proportion equation
2,721,869,731.20 : 4,082,804,596.80 = 783,172,963.20 : x - Step 2: Convert to fraction form
2,721,869,731.20/4,082,804,596.80 = 783,172,963.20/x - Step 3: Cross multiply
2,721,869,731.20x = 4,082,804,596.80 × 783,172,963.20 - Step 4: Simplify right side
2,721,869,731.20x = 3,197,542,174,242,437,632 - Step 5: Solve for x
x = 3,197,542,174,242,437,632/2,721,869,731.20 - Step 6: Final answer
x = 1,174,759,444.80
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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.