Finding the Fourth Proportional to 57,768,464.09, 79,722,408.40 and 31,663,048.81
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Solution
The fourth proportional to 57,768,464.09, 79,722,408.40 and 31,663,048.81 is: 43,696,064.07
Step by Step Solution
- Step 1: Write the proportion equation
57,768,464.09 : 79,722,408.40 = 31,663,048.81 : x - Step 2: Convert to fraction form
57,768,464.09/79,722,408.40 = 31,663,048.81/x - Step 3: Cross multiply
57,768,464.09x = 79,722,408.40 × 31,663,048.81 - Step 4: Simplify right side
57,768,464.09x = 2,524,254,508,141,490 - Step 5: Solve for x
x = 2,524,254,508,141,490/57,768,464.09 - Step 6: Final answer
x = 43,696,064.07
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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.