Finding the Fourth Proportional to 5,209,187,745.60, 7,813,781,618.40 and 3,556,193,659.20
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Solution
The fourth proportional to 5,209,187,745.60, 7,813,781,618.40 and 3,556,193,659.20 is: 5,334,290,488.80
Step by Step Solution
- Step 1: Write the proportion equation
5,209,187,745.60 : 7,813,781,618.40 = 3,556,193,659.20 : x - Step 2: Convert to fraction form
5,209,187,745.60/7,813,781,618.40 = 3,556,193,659.20/x - Step 3: Cross multiply
5,209,187,745.60x = 7,813,781,618.40 × 3,556,193,659.20 - Step 4: Simplify right side
5,209,187,745.60x = 27,787,320,645,727,592,448 - Step 5: Solve for x
x = 27,787,320,645,727,592,448/5,209,187,745.60 - Step 6: Final answer
x = 5,334,290,488.80
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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.