Finding the Fourth Proportional to 14,489,776.17, 19,996,370.51 and 7,963,636.95
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Solution
The fourth proportional to 14,489,776.17, 19,996,370.51 and 7,963,636.95 is: 10,990,082.47
Step by Step Solution
- Step 1: Write the proportion equation
14,489,776.17 : 19,996,370.51 = 7,963,636.95 : x - Step 2: Convert to fraction form
14,489,776.17/19,996,370.51 = 7,963,636.95/x - Step 3: Cross multiply
14,489,776.17x = 19,996,370.51 × 7,963,636.95 - Step 4: Simplify right side
14,489,776.17x = 159,243,835,019,508.16 - Step 5: Solve for x
x = 159,243,835,019,508.16/14,489,776.17 - Step 6: Final answer
x = 10,990,082.47
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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.