Finding the Fourth Proportional to 85,659,305.13, 128,333,067.12 and 76,476,004.65
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Solution
The fourth proportional to 85,659,305.13, 128,333,067.12 and 76,476,004.65 is: 114,574,829.00
Step by Step Solution
- Step 1: Write the proportion equation
85,659,305.13 : 128,333,067.12 = 76,476,004.65 : x - Step 2: Convert to fraction form
85,659,305.13/128,333,067.12 = 76,476,004.65/x - Step 3: Cross multiply
85,659,305.13x = 128,333,067.12 × 76,476,004.65 - Step 4: Simplify right side
85,659,305.13x = 9,814,400,237,817,884 - Step 5: Solve for x
x = 9,814,400,237,817,884/85,659,305.13 - Step 6: Final answer
x = 114,574,829.00
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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.