Finding the Fourth Proportional to 1,176,336,187.20, 1,764,504,280.80 and 531,363,643.20
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Solution
The fourth proportional to 1,176,336,187.20, 1,764,504,280.80 and 531,363,643.20 is: 797,045,464.80
Step by Step Solution
- Step 1: Write the proportion equation
1,176,336,187.20 : 1,764,504,280.80 = 531,363,643.20 : x - Step 2: Convert to fraction form
1,176,336,187.20/1,764,504,280.80 = 531,363,643.20/x - Step 3: Cross multiply
1,176,336,187.20x = 1,764,504,280.80 × 531,363,643.20 - Step 4: Simplify right side
1,176,336,187.20x = 937,593,423,087,883,776 - Step 5: Solve for x
x = 937,593,423,087,883,776/1,176,336,187.20 - Step 6: Final answer
x = 797,045,464.80
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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.