Finding the Fourth Proportional to 68,904,386.51, 103,371,713.66 and 20,378,457.09
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Solution
The fourth proportional to 68,904,386.51, 103,371,713.66 and 20,378,457.09 is: 30,572,161.48
Step by Step Solution
- Step 1: Write the proportion equation
68,904,386.51 : 103,371,713.66 = 20,378,457.09 : x - Step 2: Convert to fraction form
68,904,386.51/103,371,713.66 = 20,378,457.09/x - Step 3: Cross multiply
68,904,386.51x = 103,371,713.66 × 20,378,457.09 - Step 4: Simplify right side
68,904,386.51x = 2,106,556,031,191,022.75 - Step 5: Solve for x
x = 2,106,556,031,191,022.75/68,904,386.51 - Step 6: Final answer
x = 30,572,161.48
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.