Finding the Fourth Proportional to 54,354,778.08, 81,506,973.12 and 20,266,971.36
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Solution
The fourth proportional to 54,354,778.08, 81,506,973.12 and 20,266,971.36 is: 30,391,063.09
Step by Step Solution
- Step 1: Write the proportion equation
54,354,778.08 : 81,506,973.12 = 20,266,971.36 : x - Step 2: Convert to fraction form
54,354,778.08/81,506,973.12 = 20,266,971.36/x - Step 3: Cross multiply
54,354,778.08x = 81,506,973.12 × 20,266,971.36 - Step 4: Simplify right side
54,354,778.08x = 1,651,899,489,863,330 - Step 5: Solve for x
x = 1,651,899,489,863,330/54,354,778.08 - Step 6: Final answer
x = 30,391,063.09
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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.