Finding the Fourth Proportional to 879,504,974.16, 1,213,712,169.68 and 477,615,209.96
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Solution
The fourth proportional to 879,504,974.16, 1,213,712,169.68 and 477,615,209.96 is: 659,106,440.30
Step by Step Solution
- Step 1: Write the proportion equation
879,504,974.16 : 1,213,712,169.68 = 477,615,209.96 : x - Step 2: Convert to fraction form
879,504,974.16/1,213,712,169.68 = 477,615,209.96/x - Step 3: Cross multiply
879,504,974.16x = 1,213,712,169.68 × 477,615,209.96 - Step 4: Simplify right side
879,504,974.16x = 579,687,392,744,263,680 - Step 5: Solve for x
x = 579,687,392,744,263,680/879,504,974.16 - Step 6: Final answer
x = 659,106,440.30
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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.