Finding the Fourth Proportional to 812,503,232.64, 1,218,370,647.48 and 314,746,873.08
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Solution
The fourth proportional to 812,503,232.64, 1,218,370,647.48 and 314,746,873.08 is: 471,971,477.95
Step by Step Solution
- Step 1: Write the proportion equation
812,503,232.64 : 1,218,370,647.48 = 314,746,873.08 : x - Step 2: Convert to fraction form
812,503,232.64/1,218,370,647.48 = 314,746,873.08/x - Step 3: Cross multiply
812,503,232.64x = 1,218,370,647.48 × 314,746,873.08 - Step 4: Simplify right side
812,503,232.64x = 383,478,351,546,784,960 - Step 5: Solve for x
x = 383,478,351,546,784,960/812,503,232.64 - Step 6: Final answer
x = 471,971,477.95
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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.