Finding the Fourth Proportional to 70,135,348.23, 96,791,077.58 and 39,197,987.91
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Solution
The fourth proportional to 70,135,348.23, 96,791,077.58 and 39,197,987.91 is: 54,095,624.88
Step by Step Solution
- Step 1: Write the proportion equation
70,135,348.23 : 96,791,077.58 = 39,197,987.91 : x - Step 2: Convert to fraction form
70,135,348.23/96,791,077.58 = 39,197,987.91/x - Step 3: Cross multiply
70,135,348.23x = 96,791,077.58 × 39,197,987.91 - Step 4: Simplify right side
70,135,348.23x = 3,794,015,488,580,722 - Step 5: Solve for x
x = 3,794,015,488,580,722/70,135,348.23 - Step 6: Final answer
x = 54,095,624.88
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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.