Finding the Fourth Proportional to 140,299,679.82, 193,617,636.27 and 76,723,756.62
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Solution
The fourth proportional to 140,299,679.82, 193,617,636.27 and 76,723,756.62 is: 105,881,014.28
Step by Step Solution
- Step 1: Write the proportion equation
140,299,679.82 : 193,617,636.27 = 76,723,756.62 : x - Step 2: Convert to fraction form
140,299,679.82/193,617,636.27 = 76,723,756.62/x - Step 3: Cross multiply
140,299,679.82x = 193,617,636.27 × 76,723,756.62 - Step 4: Simplify right side
140,299,679.82x = 14,855,072,402,519,166 - Step 5: Solve for x
x = 14,855,072,402,519,166/140,299,679.82 - Step 6: Final answer
x = 105,881,014.28
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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.