Finding the Fourth Proportional to 920,782,398.60, 1,271,242,811.70 and 599,216,779.08
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Solution
The fourth proportional to 920,782,398.60, 1,271,242,811.70 and 599,216,779.08 is: 827,285,604.30
Step by Step Solution
- Step 1: Write the proportion equation
920,782,398.60 : 1,271,242,811.70 = 599,216,779.08 : x - Step 2: Convert to fraction form
920,782,398.60/1,271,242,811.70 = 599,216,779.08/x - Step 3: Cross multiply
920,782,398.60x = 1,271,242,811.70 × 599,216,779.08 - Step 4: Simplify right side
920,782,398.60x = 761,750,023,055,476,992 - Step 5: Solve for x
x = 761,750,023,055,476,992/920,782,398.60 - Step 6: Final answer
x = 827,285,604.30
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.