Finding the Fourth Proportional to 57,462,389.73, 79,299,772.53 and 31,358,588.99
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Solution
The fourth proportional to 57,462,389.73, 79,299,772.53 and 31,358,588.99 is: 43,275,766.72
Step by Step Solution
- Step 1: Write the proportion equation
57,462,389.73 : 79,299,772.53 = 31,358,588.99 : x - Step 2: Convert to fraction form
57,462,389.73/79,299,772.53 = 31,358,588.99/x - Step 3: Cross multiply
57,462,389.73x = 79,299,772.53 × 31,358,588.99 - Step 4: Simplify right side
57,462,389.73x = 2,486,728,973,254,669 - Step 5: Solve for x
x = 2,486,728,973,254,669/57,462,389.73 - Step 6: Final answer
x = 43,275,766.72
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.