Finding the Fourth Proportional to 1,724,551,490.10, 2,586,827,235.15 and 497,759,963.70
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Solution
The fourth proportional to 1,724,551,490.10, 2,586,827,235.15 and 497,759,963.70 is: 746,639,945.55
Step by Step Solution
- Step 1: Write the proportion equation
1,724,551,490.10 : 2,586,827,235.15 = 497,759,963.70 : x - Step 2: Convert to fraction form
1,724,551,490.10/2,586,827,235.15 = 497,759,963.70/x - Step 3: Cross multiply
1,724,551,490.10x = 2,586,827,235.15 × 497,759,963.70 - Step 4: Simplify right side
1,724,551,490.10x = 1,287,619,030,666,435,328 - Step 5: Solve for x
x = 1,287,619,030,666,435,328/1,724,551,490.10 - Step 6: Final answer
x = 746,639,945.55
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Double scale
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Similar ratio
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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.