Finding the Fourth Proportional to 75,628,714.99, 104,415,899.93 and 61,723,290.58
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Solution
The fourth proportional to 75,628,714.99, 104,415,899.93 and 61,723,290.58 is: 85,217,538.51
Step by Step Solution
- Step 1: Write the proportion equation
75,628,714.99 : 104,415,899.93 = 61,723,290.58 : x - Step 2: Convert to fraction form
75,628,714.99/104,415,899.93 = 61,723,290.58/x - Step 3: Cross multiply
75,628,714.99x = 104,415,899.93 × 61,723,290.58 - Step 4: Simplify right side
75,628,714.99x = 6,444,892,931,720,896 - Step 5: Solve for x
x = 6,444,892,931,720,896/75,628,714.99 - Step 6: Final answer
x = 85,217,538.51
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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.