Finding the Fourth Proportional to 12,292,291.70, 18,438,437.55 and 3,316,829.30
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Solution
The fourth proportional to 12,292,291.70, 18,438,437.55 and 3,316,829.30 is: 4,975,243.95
Step by Step Solution
- Step 1: Write the proportion equation
12,292,291.70 : 18,438,437.55 = 3,316,829.30 : x - Step 2: Convert to fraction form
12,292,291.70/18,438,437.55 = 3,316,829.30/x - Step 3: Cross multiply
12,292,291.70x = 18,438,437.55 × 3,316,829.30 - Step 4: Simplify right side
12,292,291.70x = 61,157,149,912,060.21 - Step 5: Solve for x
x = 61,157,149,912,060.21/12,292,291.70 - Step 6: Final answer
x = 4,975,243.95
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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.