Finding the Fourth Proportional to 977,135,449.60, 1,465,915,750.80 and 321,974,984.80
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Solution
The fourth proportional to 977,135,449.60, 1,465,915,750.80 and 321,974,984.80 is: 483,032,523.05
Step by Step Solution
- Step 1: Write the proportion equation
977,135,449.60 : 1,465,915,750.80 = 321,974,984.80 : x - Step 2: Convert to fraction form
977,135,449.60/1,465,915,750.80 = 321,974,984.80/x - Step 3: Cross multiply
977,135,449.60x = 1,465,915,750.80 × 321,974,984.80 - Step 4: Simplify right side
977,135,449.60x = 471,988,201,581,910,592 - Step 5: Solve for x
x = 471,988,201,581,910,592/977,135,449.60 - Step 6: Final answer
x = 483,032,523.05
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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.