Finding the Fourth Proportional to 143,394,199.99, 215,090,971.88 and 61,459,950.85
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Solution
The fourth proportional to 143,394,199.99, 215,090,971.88 and 61,459,950.85 is: 92,189,785.65
Step by Step Solution
- Step 1: Write the proportion equation
143,394,199.99 : 215,090,971.88 = 61,459,950.85 : x - Step 2: Convert to fraction form
143,394,199.99/215,090,971.88 = 61,459,950.85/x - Step 3: Cross multiply
143,394,199.99x = 215,090,971.88 × 61,459,950.85 - Step 4: Simplify right side
143,394,199.99x = 13,219,480,559,639,454 - Step 5: Solve for x
x = 13,219,480,559,639,454/143,394,199.99 - Step 6: Final answer
x = 92,189,785.65
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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.