Finding the Fourth Proportional to 15,818,473.18, 21,829,203.99 and 8,942,957.34
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Solution
The fourth proportional to 15,818,473.18, 21,829,203.99 and 8,942,957.34 is: 12,341,117.74
Step by Step Solution
- Step 1: Write the proportion equation
15,818,473.18 : 21,829,203.99 = 8,942,957.34 : x - Step 2: Convert to fraction form
15,818,473.18/21,829,203.99 = 8,942,957.34/x - Step 3: Cross multiply
15,818,473.18x = 21,829,203.99 × 8,942,957.34 - Step 4: Simplify right side
15,818,473.18x = 195,217,640,048,727.78 - Step 5: Solve for x
x = 195,217,640,048,727.78/15,818,473.18 - Step 6: Final answer
x = 12,341,117.74
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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.