Finding the Fourth Proportional to 119,432,658.12, 164,732,167.87 and 79,720,166.70
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Solution
The fourth proportional to 119,432,658.12, 164,732,167.87 and 79,720,166.70 is: 109,957,159.88
Step by Step Solution
- Step 1: Write the proportion equation
119,432,658.12 : 164,732,167.87 = 79,720,166.70 : x - Step 2: Convert to fraction form
119,432,658.12/164,732,167.87 = 79,720,166.70/x - Step 3: Cross multiply
119,432,658.12x = 164,732,167.87 × 79,720,166.70 - Step 4: Simplify right side
119,432,658.12x = 13,132,475,883,448,784 - Step 5: Solve for x
x = 13,132,475,883,448,784/119,432,658.12 - Step 6: Final answer
x = 109,957,159.88
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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.