Finding the Fourth Proportional to 137,755,440.72, 190,102,491.12 and 75,875,779.29
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Solution
The fourth proportional to 137,755,440.72, 190,102,491.12 and 75,875,779.29 is: 104,708,566.02
Step by Step Solution
- Step 1: Write the proportion equation
137,755,440.72 : 190,102,491.12 = 75,875,779.29 : x - Step 2: Convert to fraction form
137,755,440.72/190,102,491.12 = 75,875,779.29/x - Step 3: Cross multiply
137,755,440.72x = 190,102,491.12 × 75,875,779.29 - Step 4: Simplify right side
137,755,440.72x = 14,424,174,658,700,306 - Step 5: Solve for x
x = 14,424,174,658,700,306/137,755,440.72 - Step 6: Final answer
x = 104,708,566.02
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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.