Finding the Fourth Proportional to 84,488,271,781.44, 116,477,311,374.72 and 67,399,127,143.68
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Solution
The fourth proportional to 84,488,271,781.44, 116,477,311,374.72 and 67,399,127,143.68 is: 92,917,856,563.65
Step by Step Solution
- Step 1: Write the proportion equation
84,488,271,781.44 : 116,477,311,374.72 = 67,399,127,143.68 : x - Step 2: Convert to fraction form
84,488,271,781.44/116,477,311,374.72 = 67,399,127,143.68/x - Step 3: Cross multiply
84,488,271,781.44x = 116,477,311,374.72 × 67,399,127,143.68 - Step 4: Simplify right side
84,488,271,781.44x = 7,850,469,118,698,758,078,464 - Step 5: Solve for x
x = 7,850,469,118,698,758,078,464/84,488,271,781.44 - Step 6: Final answer
x = 92,917,856,563.65
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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.