Finding the Fourth Proportional to 680,907,121.20, 1,021,360,681.80 and 473,082,634.80
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Solution
The fourth proportional to 680,907,121.20, 1,021,360,681.80 and 473,082,634.80 is: 709,623,952.20
Step by Step Solution
- Step 1: Write the proportion equation
680,907,121.20 : 1,021,360,681.80 = 473,082,634.80 : x - Step 2: Convert to fraction form
680,907,121.20/1,021,360,681.80 = 473,082,634.80/x - Step 3: Cross multiply
680,907,121.20x = 1,021,360,681.80 × 473,082,634.80 - Step 4: Simplify right side
680,907,121.20x = 483,188,002,427,068,416 - Step 5: Solve for x
x = 483,188,002,427,068,416/680,907,121.20 - Step 6: Final answer
x = 709,623,952.20
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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.