Finding the Fourth Proportional to 143,641,857.12, 215,493,081.28 and 46,590,027.68
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Solution
The fourth proportional to 143,641,857.12, 215,493,081.28 and 46,590,027.68 is: 69,894,867.85
Step by Step Solution
- Step 1: Write the proportion equation
143,641,857.12 : 215,493,081.28 = 46,590,027.68 : x - Step 2: Convert to fraction form
143,641,857.12/215,493,081.28 = 46,590,027.68/x - Step 3: Cross multiply
143,641,857.12x = 215,493,081.28 × 46,590,027.68 - Step 4: Simplify right side
143,641,857.12x = 10,039,828,621,683,690 - Step 5: Solve for x
x = 10,039,828,621,683,690/143,641,857.12 - Step 6: Final answer
x = 69,894,867.85
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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.