Finding the Fourth Proportional to 145,220,178.98, 217,894,594.97 and 76,116,559.75
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Solution
The fourth proportional to 145,220,178.98, 217,894,594.97 and 76,116,559.75 is: 114,208,556.09
Step by Step Solution
- Step 1: Write the proportion equation
145,220,178.98 : 217,894,594.97 = 76,116,559.75 : x - Step 2: Convert to fraction form
145,220,178.98/217,894,594.97 = 76,116,559.75/x - Step 3: Cross multiply
145,220,178.98x = 217,894,594.97 × 76,116,559.75 - Step 4: Simplify right side
145,220,178.98x = 16,585,386,956,881,610 - Step 5: Solve for x
x = 16,585,386,956,881,610/145,220,178.98 - Step 6: Final answer
x = 114,208,556.09
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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.