Finding the Fourth Proportional to 747,305,719.60, 1,120,958,579.40 and 287,258,897.20
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Solution
The fourth proportional to 747,305,719.60, 1,120,958,579.40 and 287,258,897.20 is: 430,888,345.80
Step by Step Solution
- Step 1: Write the proportion equation
747,305,719.60 : 1,120,958,579.40 = 287,258,897.20 : x - Step 2: Convert to fraction form
747,305,719.60/1,120,958,579.40 = 287,258,897.20/x - Step 3: Cross multiply
747,305,719.60x = 1,120,958,579.40 × 287,258,897.20 - Step 4: Simplify right side
747,305,719.60x = 322,005,325,325,322,624 - Step 5: Solve for x
x = 322,005,325,325,322,624/747,305,719.60 - Step 6: Final answer
x = 430,888,345.80
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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.