Finding the Fourth Proportional to 2,721,869,727.70, 4,082,804,591.55 and 783,172,959.70
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Solution
The fourth proportional to 2,721,869,727.70, 4,082,804,591.55 and 783,172,959.70 is: 1,174,759,439.55
Step by Step Solution
- Step 1: Write the proportion equation
2,721,869,727.70 : 4,082,804,591.55 = 783,172,959.70 : x - Step 2: Convert to fraction form
2,721,869,727.70/4,082,804,591.55 = 783,172,959.70/x - Step 3: Cross multiply
2,721,869,727.70x = 4,082,804,591.55 × 783,172,959.70 - Step 4: Simplify right side
2,721,869,727.70x = 3,197,542,155,840,963,584 - Step 5: Solve for x
x = 3,197,542,155,840,963,584/2,721,869,727.70 - Step 6: Final answer
x = 1,174,759,439.55
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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.