Finding the Fourth Proportional to 124,829,679.80, 187,244,519.70 and 109,713,135.80
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Solution
The fourth proportional to 124,829,679.80, 187,244,519.70 and 109,713,135.80 is: 164,569,703.70
Step by Step Solution
- Step 1: Write the proportion equation
124,829,679.80 : 187,244,519.70 = 109,713,135.80 : x - Step 2: Convert to fraction form
124,829,679.80/187,244,519.70 = 109,713,135.80/x - Step 3: Cross multiply
124,829,679.80x = 187,244,519.70 × 109,713,135.80 - Step 4: Simplify right side
124,829,679.80x = 20,543,183,417,651,872 - Step 5: Solve for x
x = 20,543,183,417,651,872/124,829,679.80 - Step 6: Final answer
x = 164,569,703.70
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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.