Finding the Fourth Proportional to 143,689,616.70, 215,534,425.05 and 98,339,984.70
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Solution
The fourth proportional to 143,689,616.70, 215,534,425.05 and 98,339,984.70 is: 147,509,977.05
Step by Step Solution
- Step 1: Write the proportion equation
143,689,616.70 : 215,534,425.05 = 98,339,984.70 : x - Step 2: Convert to fraction form
143,689,616.70/215,534,425.05 = 98,339,984.70/x - Step 3: Cross multiply
143,689,616.70x = 215,534,425.05 × 98,339,984.70 - Step 4: Simplify right side
143,689,616.70x = 21,195,652,061,740,300 - Step 5: Solve for x
x = 21,195,652,061,740,300/143,689,616.70 - Step 6: Final answer
x = 147,509,977.05
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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.