Finding the Fourth Proportional to 216,551,867.70, 324,827,801.55 and 130,458,425.70
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Solution
The fourth proportional to 216,551,867.70, 324,827,801.55 and 130,458,425.70 is: 195,687,638.55
Step by Step Solution
- Step 1: Write the proportion equation
216,551,867.70 : 324,827,801.55 = 130,458,425.70 : x - Step 2: Convert to fraction form
216,551,867.70/324,827,801.55 = 130,458,425.70/x - Step 3: Cross multiply
216,551,867.70x = 324,827,801.55 × 130,458,425.70 - Step 4: Simplify right side
216,551,867.70x = 42,376,523,613,805,024 - Step 5: Solve for x
x = 42,376,523,613,805,024/216,551,867.70 - Step 6: Final answer
x = 195,687,638.55
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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.