Finding the Fourth Proportional to 1,228,504,733.20, 1,686,312,327.62 and 1,086,157,277.20
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Solution
The fourth proportional to 1,228,504,733.20, 1,686,312,327.62 and 1,086,157,277.20 is: 1,490,918,477.38
Step by Step Solution
- Step 1: Write the proportion equation
1,228,504,733.20 : 1,686,312,327.62 = 1,086,157,277.20 : x - Step 2: Convert to fraction form
1,228,504,733.20/1,686,312,327.62 = 1,086,157,277.20/x - Step 3: Cross multiply
1,228,504,733.20x = 1,686,312,327.62 × 1,086,157,277.20 - Step 4: Simplify right side
1,228,504,733.20x = 1,831,600,406,276,533,504 - Step 5: Solve for x
x = 1,831,600,406,276,533,504/1,228,504,733.20 - Step 6: Final answer
x = 1,490,918,477.38
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.