Finding the Fourth Proportional to 1,197,792,069.70, 1,796,688,104.55 and 290,052,933.70
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Solution
The fourth proportional to 1,197,792,069.70, 1,796,688,104.55 and 290,052,933.70 is: 435,079,400.55
Step by Step Solution
- Step 1: Write the proportion equation
1,197,792,069.70 : 1,796,688,104.55 = 290,052,933.70 : x - Step 2: Convert to fraction form
1,197,792,069.70/1,796,688,104.55 = 290,052,933.70/x - Step 3: Cross multiply
1,197,792,069.70x = 1,796,688,104.55 × 290,052,933.70 - Step 4: Simplify right side
1,197,792,069.70x = 521,134,655,668,619,776 - Step 5: Solve for x
x = 521,134,655,668,619,776/1,197,792,069.70 - Step 6: Final answer
x = 435,079,400.55
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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.