Finding the Fourth Proportional to 527,179,210.84, 790,760,013.99 and 128,341,984.87
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Solution
The fourth proportional to 527,179,210.84, 790,760,013.99 and 128,341,984.87 is: 192,510,834.39
Step by Step Solution
- Step 1: Write the proportion equation
527,179,210.84 : 790,760,013.99 = 128,341,984.87 : x - Step 2: Convert to fraction form
527,179,210.84/790,760,013.99 = 128,341,984.87/x - Step 3: Cross multiply
527,179,210.84x = 790,760,013.99 × 128,341,984.87 - Step 4: Simplify right side
527,179,210.84x = 101,487,709,751,305,568 - Step 5: Solve for x
x = 101,487,709,751,305,568/527,179,210.84 - Step 6: Final answer
x = 192,510,834.39
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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.